That's a lovely picture Tom, and much better than my recent effort.
Your web site says in one place that it was imaged at 1000mm and in
another 200mm. What equipment were you actually using? Also what kind
of site: urban, suburban, rural and how dark? I think I'm severely sky
limited in my urban housing estate site!

Happy New Year
John Moore, Fleet, Hants

Hello:

I'm new in the group. I'd like thanks to the developing team of Artemis the
great work realized until now.
I have read many web pages and messages about it.

Also I have a question. The Art285 have the same CCD than the SXV-H9. I think
the images are very good in both cameras, but ...  Someone have performed a
comparative review?



[Non-text portions of this message have been removed]

Hi John. Its a 1000mm focal length, 200mm aperture F5 classic newtonian
reflector. The webpage could perhaps be a little clearer. ;-)

It was autoguided with a 400mm refractor and a black+white 098ed SC1 toucam.

My site is sort of rural/suburban. I'm just east of Botley/Hedge End, but
further east are the wilds of the Meon Valley where its much darker. Luckily
local light pollution is pretty good - nearest streetlamp is about a mile
away ;-)

Roughly 50 55N 1 15W

You are welcome to pop down the M3 and have a look one day!

Tom


> ----------
> From:  jcmoore_uk[SMTP:johnmoore@...]
> Reply To:  ArtemisCCD@yahoogroups.com
> Sent:  01 January 2006 11:47
> To:  ArtemisCCD@yahoogroups.com
> Subject:  [ArtemisCCD] Re: A bit of M45
>
> That's a lovely picture Tom, and much better than my recent effort.
> Your web site says in one place that it was imaged at 1000mm and in
> another 200mm. What equipment were you actually using? Also what kind
> of site: urban, suburban, rural and how dark? I think I'm severely sky
> limited in my urban housing estate site!
>
> Happy New Year
> John Moore, Fleet, Hants
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>

Hello,

Ian King has written a piece for UKAI (in the knowledge base) that might
be of interest.
http://ukastroimaging.co.uk/forums/index.php

Steve



> -----Original Message-----
> From: ArtemisCCD@yahoogroups.com
> [mailto:ArtemisCCD@yahoogroups.com] On Behalf Of Jesús R. Sánchez
> Sent: 01 January 2006 23:39
> To: ArtemisCCD@yahoogroups.com
> Subject: [ArtemisCCD] Happy new year and a question
>
>
> Hello:
>
> I'm new in the group. I'd like thanks to the developing team
> of Artemis the great work realized until now. I have read
> many web pages and messages about it.
>
> Also I have a question. The Art285 have the same CCD than the
> SXV-H9. I think the images are very good in both cameras, but
> ...  Someone have performed a comparative review?
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>

--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.371 / Virus Database: 267.14.10/218 - Release Date:
02/01/2006

HI,

2005 was quite a year.  From memory we had the Artemis beta test in
January and launched the camera kits in April/May.  October saw the
ready built versions from ATIK Instruments, and a prototype USB2 camera.
In December the Artemis focusers were announced.

Of course it would all be a waste of time if nobody was using the
cameras.  Thankfully this it not the case and there have been many
stunning images taken with the cameras.

Now we are into just 2006 it’s a good opportunity to thank everyone
involved with the Artemis cameras, from design, testing to taking
pictures.  Thank you one and all.

With the new baby and buzz bomb of a 1 year old I have taken it a little
easy this Christmas.  I have a bit of an email mountain to climb now, so
if anyone is waiting for a reply,  sorry!  I have found the time to do a
bit more work on the up coming large format camera.  You can see a 3D
render of the PCB here
http://www.pmdo.com/download/layout.jpg

OK if might not look much but it takes ages to get to this stage!  Just
need to add some more 0.1uF caps (you can never have too many, right
John?) and sort the component labels out and it should be job done.  The
development had slipped a couple of weeks when testing the USB2
prototype threw up an unexpected problem if the same ADC would have been
used for this camera.  It was possible we could have used software to
get around it but it would not have been ideal.  So it was back to the
drawing board with a different chipset,  extra work but I think the
result will be very worthwhile.

Looking ahead the next few weeks.  We hope to trial a planetary camera.
This has been put on hold over the Christmas break but I should now to
be able to talk to some manufactures about the parts we need.

If that was not enough (and it is) there are another couple of projects
also in the pipeline.

Happy 2006,  it should be a lot of fun.

Steve

--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.371 / Virus Database: 267.14.10/218 - Release Date:
02/01/2006

Ahem, that'd be Nick King then Steve :P
Also Tom has one here http://astro.neutral.org/eq/artemis.html but it
may be needing an update soon?

Arthur

PS Y'all have a good year!



--- In ArtemisCCD@yahoogroups.com, "Steve Chambers" <Steve@P...> wrote:
>
> Hello,
>
> Ian King has written a piece for UKAI (in the knowledge base) that might
> be of interest.
> http://ukastroimaging.co.uk/forums/index.php
>
> Steve
>
>
>
> > -----Original Message-----
> > From: ArtemisCCD@yahoogroups.com
> > [mailto:ArtemisCCD@yahoogroups.com] On Behalf Of Jesús R. Sánchez
> > Sent: 01 January 2006 23:39
> > To: ArtemisCCD@yahoogroups.com
> > Subject: [ArtemisCCD] Happy new year and a question
> >
> >
> > Hello:
> >
> > I'm new in the group. I'd like thanks to the developing team
> > of Artemis the great work realized until now. I have read
> > many web pages and messages about it.
> >
> > Also I have a question. The Art285 have the same CCD than the
> > SXV-H9. I think the images are very good in both cameras, but
> > ...  Someone have performed a comparative review?
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
>
> --
> No virus found in this outgoing message.
> Checked by AVG Free Edition.
> Version: 7.1.371 / Virus Database: 267.14.10/218 - Release Date:
> 02/01/2006
>

> Ahem, that'd be Nick King then Steve :P

Err yeah, guess so... :o

Dwain

--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.371 / Virus Database: 267.14.10/218 - Release Date:
02/01/2006

Happy New Year one and all.

That circuit board looks like its designed to go in a ROUND case......

> ----------
> From:  Steve Chambers[SMTP:Steve@...]
> Reply To:  ArtemisCCD@yahoogroups.com
> Sent:  02 January 2006 18:09
> To:  ArtemisCCD@yahoogroups.com
> Subject:  [ArtemisCCD] Happy new year
>
> HI,
>
> 2005 was quite a year.  From memory we had the Artemis beta test in
> January and launched the camera kits in April/May.  October saw the
> ready built versions from ATIK Instruments, and a prototype USB2 camera.
> In December the Artemis focusers were announced.
>
> Of course it would all be a waste of time if nobody was using the
> cameras.  Thankfully this it not the case and there have been many
> stunning images taken with the cameras.
>
> Now we are into just 2006 it's a good opportunity to thank everyone
> involved with the Artemis cameras, from design, testing to taking
> pictures.  Thank you one and all.
>
> With the new baby and buzz bomb of a 1 year old I have taken it a little
> easy this Christmas.  I have a bit of an email mountain to climb now, so
> if anyone is waiting for a reply,  sorry!  I have found the time to do a
> bit more work on the up coming large format camera.  You can see a 3D
> render of the PCB here
> http://www.pmdo.com/download/layout.jpg
>
> OK if might not look much but it takes ages to get to this stage!  Just
> need to add some more 0.1uF caps (you can never have too many, right
> John?) and sort the component labels out and it should be job done.  The
> development had slipped a couple of weeks when testing the USB2
> prototype threw up an unexpected problem if the same ADC would have been
> used for this camera.  It was possible we could have used software to
> get around it but it would not have been ideal.  So it was back to the
> drawing board with a different chipset,  extra work but I think the
> result will be very worthwhile.
>
> Looking ahead the next few weeks.  We hope to trial a planetary camera.
> This has been put on hold over the Christmas break but I should now to
> be able to talk to some manufactures about the parts we need.
>
> If that was not enough (and it is) there are another couple of projects
> also in the pipeline.
>
> Happy 2006,  it should be a lot of fun.
>
> Steve
>
> --
> No virus found in this outgoing message.
> Checked by AVG Free Edition.
> Version: 7.1.371 / Virus Database: 267.14.10/218 - Release Date:
> 02/01/2006
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>

I'm still fighting a rearguard on that one.  Round-ish :O)

Arthur

-----Original Message-----
From: ArtemisCCD@yahoogroups.com [mailto:ArtemisCCD@yahoogroups.com] On
Behalf Of Tom How
Sent: 03 January 2006 09:43
To: 'ArtemisCCD@yahoogroups.com'
Subject: RE: [ArtemisCCD] Happy new year


Happy New Year one and all.

That circuit board looks like its designed to go in a ROUND case......

Ah, I see, octagonal. Stops it rolling around the observatory floor I
suppose. ;-)


> ----------
> From:  Arthur Edwards[SMTP:ambermile@...]
> Reply To:  ArtemisCCD@yahoogroups.com
> Sent:  03 January 2006 09:40
> To:  ArtemisCCD@yahoogroups.com
> Subject:  RE: [ArtemisCCD] Happy new year
>
> I'm still fighting a rearguard on that one.  Round-ish :O)
>
> Arthur
>
> -----Original Message-----
> From: ArtemisCCD@yahoogroups.com [mailto:ArtemisCCD@yahoogroups.com] On
> Behalf Of Tom How
> Sent: 03 January 2006 09:43
> To: 'ArtemisCCD@yahoogroups.com'
> Subject: RE: [ArtemisCCD] Happy new year
>
>
> Happy New Year one and all.
>
> That circuit board looks like its designed to go in a ROUND case......
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>

Hello Tom,

> My site is sort of rural/suburban. I'm just east of Botley/Hedge
End, but
> further east are the wilds of the Meon Valley where its much darker.
Luckily
> local light pollution is pretty good - nearest streetlamp is about a
mile
> away ;-)
>
> Roughly 50 55N 1 15W
>
> You are welcome to pop down the M3 and have a look one day!
>
I'd love to, thanks. I'll be in touch!

John

Hi,

Version 1.1 of the focuser software is now on the ArtemisCCD website
(focuser > Downloads).  No new features but a couple of bugs have been
caught.  1 a missing OCX is now included in the installation. 2 A weird
one relating to reading from some computers registries but should be OK
now.

Steve

--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.371 / Virus Database: 267.14.12/220 - Release Date:
03/01/2006

Well, I checked this with Arthur who apparently checked it with SC.

With Arthur's help I've developed a 'roving' power supply unit
available from http://astronomiser.co.uk/ which steps down the
voltage from a standard power station or leisure battery to give the
standard artemis feed voltages using a standard din power socket -
check http://www.astronomiser.co.uk/power.htm for further details.

The supply provides supply voltage (assuming 12v or 13.8v) at a
maximum of 2A (the ART requires 500mA I believe) and 5v at 3A (the
pelt cooler needing 2.5A) and is supplied with 1m of 12v 6A cable
with an attached cigar lighter plug (or bared/tinned wire for people
using alternative field supplies)and 4 core 6A cable x2m to din to
connect to the camera.

For those of you which wish to develop your own, there's no miracle
happenning here - simply 3 1A 5v TO-220 regulators and an led
packaged in a small plastic mb.  As with anything produced by
astronomiser, I'm happy to forward construction details to the
hobbyist.

Cheers,

Andy

And very neat it is too Andy - but there's no #art in power.htm :(

Arthur :o)

-----Original Message-----
From: ArtemisCCD@yahoogroups.com [mailto:ArtemisCCD@yahoogroups.com] On
Behalf Of Andy Ellis
Sent: 06 January 2006 23:36
To: ArtemisCCD@yahoogroups.com
Subject: [ArtemisCCD] Roving Power Supply units for Artemis Cameras


Well, I checked this with Arthur who apparently checked it with SC.

With Arthur's help I've developed a 'roving' power supply unit
available from http://astronomiser.co.uk/ which steps down the
voltage from a standard power station or leisure battery to give the
standard artemis feed voltages using a standard din power socket -
check http://www.astronomiser.co.uk/power.htm for further details.

The supply provides supply voltage (assuming 12v or 13.8v) at a
maximum of 2A (the ART requires 500mA I believe) and 5v at 3A (the
pelt cooler needing 2.5A) and is supplied with 1m of 12v 6A cable
with an attached cigar lighter plug (or bared/tinned wire for people
using alternative field supplies)and 4 core 6A cable x2m to din to
connect to the camera.

For those of you which wish to develop your own, there's no miracle
happenning here - simply 3 1A 5v TO-220 regulators and an led
packaged in a small plastic mb.  As with anything produced by
astronomiser, I'm happy to forward construction details to the
hobbyist.

Cheers,

Andy







Yahoo! Groups Links








--
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.1.371 / Virus Database: 267.14.14/222 - Release Date:
1/5/2006

Hi Andy,

Looks very nice,  if you like I can add a link from the Artemis site.
Did you consider using the switch mode converter from Farnell to get 5V.
Details are on this list.  It could double battery life and can give a
variable voltage to the pelt.

Steve

> -----Original Message-----
> From: ArtemisCCD@yahoogroups.com
> [mailto:ArtemisCCD@yahoogroups.com] On Behalf Of Andy Ellis
> Sent: 06 January 2006 23:36
> To: ArtemisCCD@yahoogroups.com
> Subject: [ArtemisCCD] Roving Power Supply units for Artemis Cameras
>
>
> Well, I checked this with Arthur who apparently checked it with SC.
>
> With Arthur's help I've developed a 'roving' power supply unit
> available from http://astronomiser.co.uk/ which steps down the
> voltage from a standard power station or leisure battery to give the
> standard artemis feed voltages using a standard din power socket -
> check http://www.astronomiser.co.uk/power.htm for further details.
>
> The supply provides supply voltage (assuming 12v or 13.8v) at a
> maximum of 2A (the ART requires 500mA I believe) and 5v at 3A (the
> pelt cooler needing 2.5A) and is supplied with 1m of 12v 6A cable
> with an attached cigar lighter plug (or bared/tinned wire for people
> using alternative field supplies)and 4 core 6A cable x2m to din to
> connect to the camera.
>
> For those of you which wish to develop your own, there's no miracle
> happenning here - simply 3 1A 5v TO-220 regulators and an led
> packaged in a small plastic mb.  As with anything produced by
> astronomiser, I'm happy to forward construction details to the
> hobbyist.
>
> Cheers,
>
> Andy
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>

--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.371 / Virus Database: 267.14.15/223 - Release Date:
06/01/2006

Yeah - I had thought of combining it with a pwm (square wave - max 100% duty
cycle) or timer circuit (saw tooth max 97% duty cycle - a tenth of the cost)
to allow it to cool in pulses (so for colder weather it could just come on
for 1 sec in every 5 or something).  I'm developing something similar
(slowly) for dew band control, though a lot of the dew band controllers I've
seen on the market actually just use pots on the main supply current thereby
not saving battery life at all.  Obviously, this could significantly add to
the end price.

What's the advantages to making the voltage variable?

Cheers,

Andy
----- Original Message -----
From: "Steve Chambers" <Steve@...>
To: <ArtemisCCD@yahoogroups.com>
Sent: Saturday, January 07, 2006 10:27 AM
Subject: RE: [ArtemisCCD] Roving Power Supply units for Artemis Cameras


> Hi Andy,
>
> Looks very nice,  if you like I can add a link from the Artemis site.
> Did you consider using the switch mode converter from Farnell to get 5V.
> Details are on this list.  It could double battery life and can give a
> variable voltage to the pelt.
>
> Steve
>
> > -----Original Message-----
> > From: ArtemisCCD@yahoogroups.com
> > [mailto:ArtemisCCD@yahoogroups.com] On Behalf Of Andy Ellis
> > Sent: 06 January 2006 23:36
> > To: ArtemisCCD@yahoogroups.com
> > Subject: [ArtemisCCD] Roving Power Supply units for Artemis Cameras
> >
> >
> > Well, I checked this with Arthur who apparently checked it with SC.
> >
> > With Arthur's help I've developed a 'roving' power supply unit
> > available from http://astronomiser.co.uk/ which steps down the
> > voltage from a standard power station or leisure battery to give the
> > standard artemis feed voltages using a standard din power socket -
> > check http://www.astronomiser.co.uk/power.htm for further details.
> >
> > The supply provides supply voltage (assuming 12v or 13.8v) at a
> > maximum of 2A (the ART requires 500mA I believe) and 5v at 3A (the
> > pelt cooler needing 2.5A) and is supplied with 1m of 12v 6A cable
> > with an attached cigar lighter plug (or bared/tinned wire for people
> > using alternative field supplies)and 4 core 6A cable x2m to din to
> > connect to the camera.
> >
> > For those of you which wish to develop your own, there's no miracle
> > happenning here - simply 3 1A 5v TO-220 regulators and an led
> > packaged in a small plastic mb.  As with anything produced by
> > astronomiser, I'm happy to forward construction details to the
> > hobbyist.
> >
> > Cheers,
> >
> > Andy
> >
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
>
> --
> No virus found in this outgoing message.
> Checked by AVG Free Edition.
> Version: 7.1.371 / Virus Database: 267.14.15/223 - Release Date:
> 06/01/2006
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>
> --
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.1.371 / Virus Database: 267.14.15/223 - Release Date:
06/01/2006
>



--
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Checked by AVG Free Edition.
Version: 7.1.371 / Virus Database: 267.14.15/223 - Release Date: 06/01/2006

Ah Ha!  I *think* I can answer that - at least for the pelt anyway.  I'm
pretty sure there is little to be gained in getting the peltier/ccd
below zero degrees wrt to the Sony chips.  So, if it's already pretty
cold then you can reduce the supply voltage and save batteries!

Probably a completely wrong answer but still, I tried :O)

-----Original Message-----
From: ArtemisCCD@yahoogroups.com [mailto:ArtemisCCD@yahoogroups.com] On
Behalf Of Andy Ellis
Sent: 07 January 2006 15:25
To: ArtemisCCD@yahoogroups.com
Subject: Re: [ArtemisCCD] Roving Power Supply units for Artemis Cameras


Yeah - I had thought of combining it with a pwm (square wave - max 100%
duty
cycle) or timer circuit (saw tooth max 97% duty cycle - a tenth of the
cost) to allow it to cool in pulses (so for colder weather it could just
come on for 1 sec in every 5 or something).  I'm developing something
similar
(slowly) for dew band control, though a lot of the dew band controllers
I've seen on the market actually just use pots on the main supply
current thereby not saving battery life at all.  Obviously, this could
significantly add to the end price.

What's the advantages to making the voltage variable?

Cheers,

Andy
----- Original Message -----
From: "Steve Chambers" <Steve@...>
To: <ArtemisCCD@yahoogroups.com>
Sent: Saturday, January 07, 2006 10:27 AM
Subject: RE: [ArtemisCCD] Roving Power Supply units for Artemis Cameras


> Hi Andy,
>
> Looks very nice,  if you like I can add a link from the Artemis site.
> Did you consider using the switch mode converter from Farnell to get
> 5V. Details are on this list.  It could double battery life and can
> give a variable voltage to the pelt.
>
> Steve
>
> > -----Original Message-----
> > From: ArtemisCCD@yahoogroups.com [mailto:ArtemisCCD@yahoogroups.com]

> > On Behalf Of Andy Ellis
> > Sent: 06 January 2006 23:36
> > To: ArtemisCCD@yahoogroups.com
> > Subject: [ArtemisCCD] Roving Power Supply units for Artemis Cameras
> >
> >
> > Well, I checked this with Arthur who apparently checked it with SC.
> >
> > With Arthur's help I've developed a 'roving' power supply unit
> > available from http://astronomiser.co.uk/ which steps down the
> > voltage from a standard power station or leisure battery to give the

> > standard artemis feed voltages using a standard din power socket -
> > check http://www.astronomiser.co.uk/power.htm for further details.
> >
> > The supply provides supply voltage (assuming 12v or 13.8v) at a
> > maximum of 2A (the ART requires 500mA I believe) and 5v at 3A (the
> > pelt cooler needing 2.5A) and is supplied with 1m of 12v 6A cable
> > with an attached cigar lighter plug (or bared/tinned wire for people

> > using alternative field supplies)and 4 core 6A cable x2m to din to
> > connect to the camera.
> >
> > For those of you which wish to develop your own, there's no miracle
> > happenning here - simply 3 1A 5v TO-220 regulators and an led
> > packaged in a small plastic mb.  As with anything produced by
> > astronomiser, I'm happy to forward construction details to the
> > hobbyist.
> >
> > Cheers,
> >
> > Andy
> >
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
>
> --
> No virus found in this outgoing message.
> Checked by AVG Free Edition.
> Version: 7.1.371 / Virus Database: 267.14.15/223 - Release Date:
> 06/01/2006
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>
> --
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.1.371 / Virus Database: 267.14.15/223 - Release Date:
06/01/2006
>



--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.371 / Virus Database: 267.14.15/223 - Release Date:
06/01/2006




Yahoo! Groups Links








--
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.1.371 / Virus Database: 267.14.15/223 - Release Date:
1/6/2006

> Did you consider using the switch mode converter from Farnell to
get 5V.
> Details are on this list.  It could double battery life and can
give a
> variable voltage to the pelt.
>
Since I published this idea (some time ago) I have now added a
rotary switch on my control box to give 6 preset voltages for the
Pelt: 2.0, 2.5, 3.0, 3.5, 4.0 and 4.5V. The optimimum voltage
obviously depends on your camera model and Peltier device. I have
also previously published the results of various tests with an ART
285 and an ART 424. For both the optimum voltage at ambients of
around 20degC is around 4.0V, and no more. Also the current is
nowhere near the 2.5A quoted; less than 1A in fact.

Presently in the winter I'm using 3.0V with my Art285, and even then
I only switch the Pelt on after framing and focussing and before
starting imaging. This delays the onset of dewing.

John Moore
Fleet, Hants, England

PS, I wouldn't consider switch moding the Pelt. I think the large
current pulses could affect the image.

John Moore

Hi,

Have a look at

http://groups.yahoo.com/group/ArtemisCCD/message/27

Steve

> -----Original Message-----
> From: ArtemisCCD@yahoogroups.com
> [mailto:ArtemisCCD@yahoogroups.com] On Behalf Of Andy Ellis
> Sent: 07 January 2006 15:25
> To: ArtemisCCD@yahoogroups.com
> Subject: Re: [ArtemisCCD] Roving Power Supply units for
> Artemis Cameras
>
>
> Yeah - I had thought of combining it with a pwm (square wave
> - max 100% duty
> cycle) or timer circuit (saw tooth max 97% duty cycle - a
> tenth of the cost) to allow it to cool in pulses (so for
> colder weather it could just come on for 1 sec in every 5 or
> something).  I'm developing something similar
> (slowly) for dew band control, though a lot of the dew band
> controllers I've seen on the market actually just use pots on
> the main supply current thereby not saving battery life at
> all.  Obviously, this could significantly add to the end price.
>
> What's the advantages to making the voltage variable?
>
> Cheers,
>
> Andy
> ----- Original Message -----
> From: "Steve Chambers" <Steve@...>
> To: <ArtemisCCD@yahoogroups.com>
> Sent: Saturday, January 07, 2006 10:27 AM
> Subject: RE: [ArtemisCCD] Roving Power Supply units for
> Artemis Cameras
>
>
> > Hi Andy,
> >
> > Looks very nice,  if you like I can add a link from the
> Artemis site.
> > Did you consider using the switch mode converter from
> Farnell to get
> > 5V. Details are on this list.  It could double battery life and can
> > give a variable voltage to the pelt.
> >
> > Steve
> >
> > > -----Original Message-----
> > > From: ArtemisCCD@yahoogroups.com
> [mailto:ArtemisCCD@yahoogroups.com]
> > > On Behalf Of Andy Ellis
> > > Sent: 06 January 2006 23:36
> > > To: ArtemisCCD@yahoogroups.com
> > > Subject: [ArtemisCCD] Roving Power Supply units for
> Artemis Cameras
> > >
> > >
> > > Well, I checked this with Arthur who apparently checked
> it with SC.
> > >
> > > With Arthur's help I've developed a 'roving' power supply unit
> > > available from http://astronomiser.co.uk/ which steps down the
> > > voltage from a standard power station or leisure battery
> to give the
> > > standard artemis feed voltages using a standard din power
> socket -
> > > check http://www.astronomiser.co.uk/power.htm for further details.
> > >
> > > The supply provides supply voltage (assuming 12v or 13.8v) at a
> > > maximum of 2A (the ART requires 500mA I believe) and 5v
> at 3A (the
> > > pelt cooler needing 2.5A) and is supplied with 1m of 12v 6A cable
> > > with an attached cigar lighter plug (or bared/tinned wire
> for people
> > > using alternative field supplies)and 4 core 6A cable x2m
> to din to
> > > connect to the camera.
> > >
> > > For those of you which wish to develop your own, there's
> no miracle
> > > happenning here - simply 3 1A 5v TO-220 regulators and an led
> > > packaged in a small plastic mb.  As with anything produced by
> > > astronomiser, I'm happy to forward construction details to the
> > > hobbyist.
> > >
> > > Cheers,
> > >
> > > Andy
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
> > --
> > No virus found in this outgoing message.
> > Checked by AVG Free Edition.
> > Version: 7.1.371 / Virus Database: 267.14.15/223 - Release Date:
> > 06/01/2006
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > --
> > No virus found in this incoming message.
> > Checked by AVG Free Edition.
> > Version: 7.1.371 / Virus Database: 267.14.15/223 - Release Date:
> 06/01/2006
> >
>
>
>
> --
> No virus found in this outgoing message.
> Checked by AVG Free Edition.
> Version: 7.1.371 / Virus Database: 267.14.15/223 - Release
> Date: 06/01/2006
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>

--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.371 / Virus Database: 267.14.15/223 - Release Date:
06/01/2006

Hmm - wrt to John's comment about pwm'ing the pelt, I had a 4A/12v 2A/
5v supply (switch-mode) that I had intended to use for both the
Kendricks and the mount but every time the Kendrick controller switched
it stopped the mount :(

Arthur

-----Original Message-----
From: ArtemisCCD@yahoogroups.com [mailto:ArtemisCCD@yahoogroups.com] On
Behalf Of Steve Chambers
Sent: 07 January 2006 16:20
To: ArtemisCCD@yahoogroups.com
Subject: RE: [ArtemisCCD] Roving Power Supply units for Artemis Cameras


Hi,

Have a look at

http://groups.yahoo.com/group/ArtemisCCD/message/27

Steve

> -----Original Message-----
> From: ArtemisCCD@yahoogroups.com
> [mailto:ArtemisCCD@yahoogroups.com] On Behalf Of Andy Ellis
> Sent: 07 January 2006 15:25
> To: ArtemisCCD@yahoogroups.com
> Subject: Re: [ArtemisCCD] Roving Power Supply units for
> Artemis Cameras
>
>
> Yeah - I had thought of combining it with a pwm (square wave
> - max 100% duty
> cycle) or timer circuit (saw tooth max 97% duty cycle - a
> tenth of the cost) to allow it to cool in pulses (so for
> colder weather it could just come on for 1 sec in every 5 or
> something).  I'm developing something similar
> (slowly) for dew band control, though a lot of the dew band
> controllers I've seen on the market actually just use pots on
> the main supply current thereby not saving battery life at
> all.  Obviously, this could significantly add to the end price.
>
> What's the advantages to making the voltage variable?
>
> Cheers,
>
> Andy
> ----- Original Message -----
> From: "Steve Chambers" <Steve@...>
> To: <ArtemisCCD@yahoogroups.com>
> Sent: Saturday, January 07, 2006 10:27 AM
> Subject: RE: [ArtemisCCD] Roving Power Supply units for
> Artemis Cameras
>
>
> > Hi Andy,
> >
> > Looks very nice,  if you like I can add a link from the
> Artemis site.
> > Did you consider using the switch mode converter from
> Farnell to get
> > 5V. Details are on this list.  It could double battery life and can
> > give a variable voltage to the pelt.
> >
> > Steve
> >
> > > -----Original Message-----
> > > From: ArtemisCCD@yahoogroups.com
> [mailto:ArtemisCCD@yahoogroups.com]
> > > On Behalf Of Andy Ellis
> > > Sent: 06 January 2006 23:36
> > > To: ArtemisCCD@yahoogroups.com
> > > Subject: [ArtemisCCD] Roving Power Supply units for
> Artemis Cameras
> > >
> > >
> > > Well, I checked this with Arthur who apparently checked
> it with SC.
> > >
> > > With Arthur's help I've developed a 'roving' power supply unit
> > > available from http://astronomiser.co.uk/ which steps down the
> > > voltage from a standard power station or leisure battery
> to give the
> > > standard artemis feed voltages using a standard din power
> socket -
> > > check http://www.astronomiser.co.uk/power.htm for further details.
> > >
> > > The supply provides supply voltage (assuming 12v or 13.8v) at a
> > > maximum of 2A (the ART requires 500mA I believe) and 5v
> at 3A (the
> > > pelt cooler needing 2.5A) and is supplied with 1m of 12v 6A cable
> > > with an attached cigar lighter plug (or bared/tinned wire
> for people
> > > using alternative field supplies)and 4 core 6A cable x2m
> to din to
> > > connect to the camera.
> > >
> > > For those of you which wish to develop your own, there's
> no miracle
> > > happenning here - simply 3 1A 5v TO-220 regulators and an led
> > > packaged in a small plastic mb.  As with anything produced by
> > > astronomiser, I'm happy to forward construction details to the
> > > hobbyist.
> > >
> > > Cheers,
> > >
> > > Andy
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
> > --
> > No virus found in this outgoing message.
> > Checked by AVG Free Edition.
> > Version: 7.1.371 / Virus Database: 267.14.15/223 - Release Date:
> > 06/01/2006
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > --
> > No virus found in this incoming message.
> > Checked by AVG Free Edition.
> > Version: 7.1.371 / Virus Database: 267.14.15/223 - Release Date:
> 06/01/2006
> >
>
>
>
> --
> No virus found in this outgoing message.
> Checked by AVG Free Edition.
> Version: 7.1.371 / Virus Database: 267.14.15/223 - Release
> Date: 06/01/2006
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>

--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.371 / Virus Database: 267.14.15/223 - Release Date:
06/01/2006





Yahoo! Groups Links









--
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.1.371 / Virus Database: 267.14.15/223 - Release Date:
1/6/2006

It may be terminology here.  I was suggesting the same farnell module
you first suggested.  Surely this is a switch mode converter.  300kHz
apparently.

Steve

> -----Original Message-----
> From: ArtemisCCD@yahoogroups.com
> [mailto:ArtemisCCD@yahoogroups.com] On Behalf Of jcmoore_uk
> Sent: 07 January 2006 16:19
> To: ArtemisCCD@yahoogroups.com
> Subject: [ArtemisCCD] Re: Roving Power Supply units for
> Artemis Cameras
>
>
> PS, I wouldn't consider switch moding the Pelt. I think the large
> current pulses could affect the image.
>
> John Moore
>

--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.371 / Virus Database: 267.14.15/223 - Release Date:
06/01/2006

--- In ArtemisCCD@yahoogroups.com, "Steve Chambers" <Steve@P...> wrote:
>
> It may be terminology here.  I was suggesting the same farnell module
> you first suggested.  Surely this is a switch mode converter.  300kHz
> apparently.
Yes, sorry for the confusion Steve. I'm still using the same
switchmode supply (now with selectable output voltages). What I meant
was that I wouldn't consider chopping the current all the way down to
the Pelt itself, because of the large fast current pulses that would
travel down the cables to the camera and probably get into the high
gain imaging amplifiers. Such chopping could be done on any timescale,
either at high frequency or for example over periods of several
seconds or minutes. On the other hand, the switchmode power supply has
large smoothing capacitors on the output (and input) so that by and
large all the high current transients are confined to the supply
itself, and never get near the camera. Hope this is clear!

John Moore

I have just uploaded an elementary SDK for the Artemis cameras. It is available
from http://www.artemisccd.co.uk/downloads.htm

The SDK provides C++ source and header files to allow easy access to the
functions in the ArtemisCCD dll. At present there is no separate documentation,
but the functions all have comments in the header file describing what they do.
Hopefully some more thorough documentation should appear in due course.

There is also a simple example application project (written in Visual C++) which
shows how to download an image from the Artemis and display it in a window. This
is not intended as a useful application, but more as a starting point for anyone
wishing to develop their own capture application.

As usual, please let me know of any comments or issues with this software,

Cheers,
Jon.

[Non-text portions of this message have been removed]

Hello Jon,

I just installed your SDK and run it from program files and it cannot
find the file ArtemisSDK.exe. It has created the folder OK but there
is no file ArtemisSDK.exe. Just to be sure I did a 2nd dowload and
install no change.

Best regards,

Rob


--- In ArtemisCCD@yahoogroups.com, "Jon Grove" <jgroveuk@y...> wrote:
>
> I have just uploaded an elementary SDK for the Artemis cameras. It
is available from http://www.artemisccd.co.uk/downloads.htm
>
> The SDK provides C++ source and header files to allow easy access
to the functions in the ArtemisCCD dll. At present there is no
separate documentation, but the functions all have comments in the
header file describing what they do. Hopefully some more thorough
documentation should appear in due course.
>
> There is also a simple example application project (written in
Visual C++) which shows how to download an image from the Artemis and
display it in a window. This is not intended as a useful application,
but more as a starting point for anyone wishing to develop their own
capture application.
>
> As usual, please let me know of any comments or issues with this
software,
>
> Cheers,
> Jon.
>
> [Non-text portions of this message have been removed]
>

Jon Grove wrote:
> I have just uploaded an elementary SDK for the Artemis cameras. It is
> available from http://www.artemisccd.co.uk/downloads.htm
>
> The SDK provides C++ source and header files to allow easy access to
> the functions in the ArtemisCCD dll. At present there is no separate
> documentation, but the functions all have comments in the header file
> describing what they do. Hopefully some more thorough documentation
> should appear in due course.
>
> There is also a simple example application project (written in Visual
> C++) which shows how to download an image from the Artemis and
> display it in a window. This is not intended as a useful application,
> but more as a starting point for anyone wishing to develop their own
> capture application.
>
> As usual, please let me know of any comments or issues with this
> software,
>
> Cheers,
> Jon.

Hi Jon,

This is really excellent news! Many thanks!

I had a quick look at the API + sample and it looks quite understandable.
Even though ArtemisCapture does all I need at the moment, it could be
tempting to try this API. C++ (MSVC++ 6.0) is what I use, so it is just
perfect.

Again, many thanks for providing this. I am guessing Artemis will be
supported in many applications soon.

Clear skies
Carsten A. Arnholm
http://arnholm.org/
N59.776 E10.457

Ah - I think that's an error in my installer file. There is actually no
executable file associated with the SDK, so there shouldn't really be
any shortcut to anything added in the 'program files' menu. The SDK is
just some source code which you can use to build your own applications
if you wish. The files to look for are ArtemisCCDAPI.cpp and
ArtemisCCDAPI.h

I will fix the installer when I get an opportunity. Thanks for pointing
out the error!

Jon.

--- web_group_y <webmail01.yahoo@...> wrote:

> Hello Jon,
>
> I just installed your SDK and run it from program files and it cannot
>
> find the file ArtemisSDK.exe. It has created the folder OK but there
> is no file ArtemisSDK.exe. Just to be sure I did a 2nd dowload and
> install no change.
>
> Best regards,
>
> Rob
>
>
> --- In ArtemisCCD@yahoogroups.com, "Jon Grove" <jgroveuk@y...> wrote:
> >
> > I have just uploaded an elementary SDK for the Artemis cameras. It
> is available from http://www.artemisccd.co.uk/downloads.htm
> >
> > The SDK provides C++ source and header files to allow easy access
> to the functions in the ArtemisCCD dll. At present there is no
> separate documentation, but the functions all have comments in the
> header file describing what they do. Hopefully some more thorough
> documentation should appear in due course.
> >
> > There is also a simple example application project (written in
> Visual C++) which shows how to download an image from the Artemis and
>
> display it in a window. This is not intended as a useful application,
>
> but more as a starting point for anyone wishing to develop their own
> capture application.
> >
> > As usual, please let me know of any comments or issues with this
> software,
> >
> > Cheers,
> > Jon.
> >
> > [Non-text portions of this message have been removed]
> >
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>




___________________________________________________________
NEW Yahoo! Cars - sell your car and browse thousands of new and used cars
online! http://uk.cars.yahoo.com/

Thanks Carsten - I'll look forward to seeing what can be produced with
the SDK!

Cheers,
Jon.

--- "Carsten A. Arnholm" <arnholm@...> wrote:

> Jon Grove wrote:
> > I have just uploaded an elementary SDK for the Artemis cameras. It
> is
> > available from http://www.artemisccd.co.uk/downloads.htm
> >
> > The SDK provides C++ source and header files to allow easy access
> to
> > the functions in the ArtemisCCD dll. At present there is no
> separate
> > documentation, but the functions all have comments in the header
> file
> > describing what they do. Hopefully some more thorough documentation
> > should appear in due course.
> >
> > There is also a simple example application project (written in
> Visual
> > C++) which shows how to download an image from the Artemis and
> > display it in a window. This is not intended as a useful
> application,
> > but more as a starting point for anyone wishing to develop their
> own
> > capture application.
> >
> > As usual, please let me know of any comments or issues with this
> > software,
> >
> > Cheers,
> > Jon.
>
> Hi Jon,
>
> This is really excellent news! Many thanks!
>
> I had a quick look at the API + sample and it looks quite
> understandable.
> Even though ArtemisCapture does all I need at the moment, it could be
>
> tempting to try this API. C++ (MSVC++ 6.0) is what I use, so it is
> just
> perfect.
>
> Again, many thanks for providing this. I am guessing Artemis will be
> supported in many applications soon.
>
> Clear skies
> Carsten A. Arnholm
> http://arnholm.org/
> N59.776 E10.457
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>




___________________________________________________________
To help you stay safe and secure online, we've developed the all new Yahoo!
Security Centre. http://uk.security.yahoo.com

Just for info it also set up an Artemis SDK Samples shortcut to.
Regards,
Rob

--- In ArtemisCCD@yahoogroups.com, Jon Grove <jgroveuk@y...> wrote:
>
> Ah - I think that's an error in my installer file. There is
actually no
> executable file associated with the SDK, so there shouldn't really
be
> any shortcut to anything added in the 'program files' menu. The SDK
is
> just some source code which you can use to build your own
applications
> if you wish. The files to look for are ArtemisCCDAPI.cpp and
> ArtemisCCDAPI.h
>
> I will fix the installer when I get an opportunity. Thanks for
pointing
> out the error!
>
> Jon.
>
> --- web_group_y <webmail01.yahoo@v...> wrote:
>
> > Hello Jon,
> >
> > I just installed your SDK and run it from program files and it
cannot
> >
> > find the file ArtemisSDK.exe. It has created the folder OK but
there
> > is no file ArtemisSDK.exe. Just to be sure I did a 2nd dowload
and
> > install no change.
> >
> > Best regards,
> >
> > Rob
> >
> >
> > --- In ArtemisCCD@yahoogroups.com, "Jon Grove" <jgroveuk@y...>
wrote:
> > >
> > > I have just uploaded an elementary SDK for the Artemis cameras.
It
> > is available from http://www.artemisccd.co.uk/downloads.htm
> > >
> > > The SDK provides C++ source and header files to allow easy
access
> > to the functions in the ArtemisCCD dll. At present there is no
> > separate documentation, but the functions all have comments in
the
> > header file describing what they do. Hopefully some more thorough
> > documentation should appear in due course.
> > >
> > > There is also a simple example application project (written in
> > Visual C++) which shows how to download an image from the Artemis
and
> >
> > display it in a window. This is not intended as a useful
application,
> >
> > but more as a starting point for anyone wishing to develop their
own
> > capture application.
> > >
> > > As usual, please let me know of any comments or issues with
this
> > software,
> > >
> > > Cheers,
> > > Jon.
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
> ___________________________________________________________
> NEW Yahoo! Cars - sell your car and browse thousands of new and
used cars online! http://uk.cars.yahoo.com/
>

I've updated the SDK download - the installer now generates links to the folders
containing the software. I also slightly modified the .cpp and .h file, which
had marked some functions (ArtemisFTName, ArtemisFTSerial, ArtemisIsCamera) as
'deprecated' when in fact the alternatives are not yet present in the current
release of the dll. You can take this to mean that the next dll release is
likely to see these being re-deprecated! Support for the old functions will not
be removed, the changes will really only be to provide more meaningful names for
the functions.

Cheers,
Jon


[Non-text portions of this message have been removed]