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  • Category: Amateur
  • Founded: Oct 14, 2000
  • Language: English
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#36510 From: tmboptical@yahoogroups.com
Date: Sun Feb 8, 2009 10:01 pm
Subject: New file uploaded to tmboptical
tmboptical@yahoogroups.com
Send Email Send Email
 
Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the tmboptical
group.

   File        : /Jim Phillips/Feb8-09SaturnJHP8M-0ft.jpg
   Uploaded by : jimhp29401us <thefamily90@...>
   Description : Saturn and Titan 2/8/09

You can access this file at the URL:
http://groups.yahoo.com/group/tmboptical/files/Jim%20Phillips/Feb8-09SaturnJHP8M\
-0ft.jpg

To learn more about file sharing for your group, please visit:
http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.htmlfiles

Regards,

jimhp29401us <thefamily90@...>

#36511 From: "Terry Tuggle" <tlt284@...>
Date: Mon Feb 9, 2009 3:41 am
Subject: RE: New file uploaded to tmboptical
terry_tuggle
Send Email Send Email
 
Jim,

      I have not heard anything from you for a while. This image of Saturn is
a beauty!

Hope t see some more,



Terry

http://www.geocities.com/tlt284@sbcglobal.net/terryshuntofthemonth/

   _____

From: tmboptical@yahoogroups.com [mailto:tmboptical@yahoogroups.com]
Sent: Sunday, February 08, 2009 4:02 PM
To: tmboptical@yahoogroups.com
Subject: [tmboptical] New file uploaded to tmboptical




Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the tmboptical
group.

File : /Jim Phillips/Feb8-09SaturnJHP8M-0ft.jpg
Uploaded by : jimhp29401us <thefamily90@ <mailto:thefamily90%40hotmail.com>
hotmail.com>
Description : Saturn and Titan 2/8/09

You can access this file at the URL:
http://groups.
<http://groups.yahoo.com/group/tmboptical/files/Jim%20Phillips/Feb8-09Saturn
JHP8M-0ft.jpg>
yahoo.com/group/tmboptical/files/Jim%20Phillips/Feb8-09SaturnJHP8M-0ft.jpg

To learn more about file sharing for your group, please visit:
http://help.
<http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.htmlfile
s> yahoo.com/l/us/yahoo/groups/original/members/web/index.htmlfiles

Regards,

jimhp29401us <thefamily90@ <mailto:thefamily90%40hotmail.com> hotmail.com>







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

#36512 From: dthorman1@...
Date: Fri Jan 30, 2009 2:42 am
Subject: Re: Will this be a flat field.....
obmdt3
Send Email Send Email
 
Terry and Paul
    And an EOS camera takes up 44mm of that. Is that  55-57mm measurement
taken from the mounting flange of the FR or the center  of the back element? Or
somewhere else?

CS,
David
**************From Wall Street to Main Street and everywhere in between, stay
up-to-date with the latest news. (http://aol.com?ncid=emlcntaolcom00000023)


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

#36513 From: dthorman1@...
Date: Mon Feb 9, 2009 6:30 pm
Subject: To group or not to group
obmdt3
Send Email Send Email
 
If you didn't want me to be part of this group, why did you let my join  this
group? I'm outa here.
**************The year's hottest artists on the red carpet at the Grammy
Awards.  AOL Music takes you there.
(http://music.aol.com/grammys?ncid=emlcntusmusi00000002)


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

#36514 From: "Pat" <derbycitystargazer@...>
Date: Sun Feb 1, 2009 3:31 am
Subject: New pics
derbycitysta...
Send Email Send Email
 
Greetings all.

My name is Patrick from Louisville, Kentucky am the proud owner of an 80mm f7.5
TMB
carbon fiber tube mounted on a Losmandy GM-8.  This is a most excellent
telescope that
continues to amaze my observing friends.

I posted a few pictures that I took a while back with a low cost Meade LPI.  I
enjoy reading
everyone's posts as well; very informative and fun.

Patrick

#36515 From: "Pat" <derbycitystargazer@...>
Date: Sat Feb 14, 2009 8:00 pm
Subject: Focal reducer question
derbycitysta...
Send Email Send Email
 
I am new to using a refractor.  I have an 80mm f7.5 TMB super-apo.  I am looking
for a focal
reducer, but am unsure what to purchase.  The scope will be used for some
astrophotography, both planetary and deep sky.  Any recommendations would be
most
appreciated.

Clear skies!

#36516 From: "Zing" <ufo_forever@...>
Date: Mon Feb 9, 2009 9:33 pm
Subject: elliptical star?
ufo_forever
Send Email Send Email
 
Hi all,

I was wondering if you guys could shed some light on this. I was doing
basic star test on my TMB 115/LW and I noticed that when I go slightly
out of focuse (both directions) the rings appeared to be elliptical.
I'm guessing that's the sign of astigmatism? What could be causing this?

Regards,

Zing

#36517 From: "dietmar hager" <dietmar.hager@...>
Date: Sun Feb 15, 2009 5:08 pm
Subject: CEDIC
sterngucker_...
Send Email Send Email
 
hi guys,

it is slightly off topic, but still - touches our interests in
astrophotography, I hope.
so, on behalf of the organizers I would like to draw your attention
to the first central european imaging conference for deepsky
photography:

Calling all astro images!

We would like to invite you to the "Central European Deepsky Imaging
Conference"
(CEDIC'09), which will take place from Friday, April 3, to Sunday,
April 5,
2009, in
Linz, Austria.

CEDIC'09 is the first international astro imaging conference in
Europe. The
agenda
of the meeting, and many more details, are available at the CEDIC web
site
at

http://www.cedic.at

Registration for the conference is also possible on
this web
site. Please note that the number of participants is limited, so
please
register
early.

Among the many talks schedules for CEID are "The ESA/ESO/NASA
Photoshop
FITS Liberator - in depth!" von Lars Lindberg Christensen (ESO/ESA)
and
"Astrophotography at Paranal: from a DSLR to VLT" by Yuri Beletsky
(ESO), to

name only two of the highlights. Many more interesting talks by
leading
astro
imagers, presentations of the newest astro imaging hardware, a
conference
dinner
in a relaxed atmosphere, and a opening event featuring top astro
images in a

breathtaking gigapixel projection will make CEDIC'09 an event not to
miss!

Please note that the city of Linz is also the European Capital of
Culture in
2009.
So much more waits here for you to be discovered, besides CEDIC.

Conference language is English.

cheers,
dietmar

#36518 From: dthorman1@...
Date: Fri Jan 30, 2009 2:32 am
Subject: Re: Advice on TMB 100 F8
obmdt3
Send Email Send Email
 
Hi Paul,
     My Dad has a TMB 100/800 Classic I am quite impressed  with though he
doesn't use it for imaging. I don't have any  experience with an FLT 98 but even
then I am inclined to advise on keeping the  TMB. As you said, it has been
often stated to be one of the best  4" apos ever made if not THE best. Buuuut if
you  don't use it much for visual you might be better served with a faster
scope. But  then again you could use a focal reducer on the TMB. I personally
don't  care much for really short F refractors but the majority of use mine have
seen has been visual. A lot of EPs start showing signs of lateral  color with
the shorter focus apo refractors. And the shorter you go  the worse it gets.
Put a 41 Panoptic in an F6 and look at the moon off axis  and you'll see what
I mean. Looks like someone took a tricolor image and didn't  merge it
correctly. Even my F7s do this with that EP. And as you have  found, the longer
F
creates a longer radius of field curvature eliminating the  need for a
flattener.
Well, almost. You do have a little  corner stretch there in your M42/Running
Man shot but it's not as much as I  expected. Truly hardly noticeable. My F7 6"
and 30D produce more corner  stretch than that without the flattener and I
would have to think that it has a  longer radius of curvature. Nice shot BTW.
Did you crop it?
     A modded DSLR might reduce your exposure  times by letting more of the
red H, N and S emisions through but not  having modded my Canon I'm not sure.
Just curious, why do you want to downgrade  from the 20D to a Rebel? I'm
assuming that you use a Canon TC (timer  controller)? Are you aware that it
won't
plug into a Rebel without modifying the  plug? Of course the cost of modding the
plug plus the camera might still be less  than a 40D.
     Anyway, I hope this helps you alleviate any buyers  (traders) remorse
about the TMB.

CS,
David
**************From Wall Street to Main Street and everywhere in between, stay
up-to-date with the latest news. (http://aol.com?ncid=emlcntaolcom00000023)


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

#36519 From: "Greg Beeke" <greg@...>
Date: Mon Feb 2, 2009 8:44 pm
Subject: Three nights on the Horsehead
beekeg
Send Email Send Email
 
Hi,

The recent spell of three clear nights allowed me to collect some
decent data on this familiar target.  I managed just over 4 hours of
photons.  I'm pleased with the result, though it was a bit of a trial
getting the calibration right on one of the sets of raw images for
some reason.  I used my modified Canon 20D, IDAS filter and TMB152.
Calibration in IRIS and post processing in Photoshop.

Comment ant critique most welcome

Greg

http://tinyurl.com/akhjnb

#36520 From: "Mark Rieck" <derklaus@...>
Date: Fri Jan 30, 2009 2:47 am
Subject: Re: Advice on TMB 100 F8
maknewtnut
Send Email Send Email
 
If you seek the same optical quality without giving up aperture or
speed, the 105/650 is super sweet too. I'd try your existing TV
reducer flattener first however, to see what you think of those
results.

Mark

--- In tmboptical@yahoogroups.com, "madpc" <madpc@...> wrote:
>
> Hi All,
>
> Until recently I had been using an Excellent William Optics FLT-98
When a
> TMB 100 F8 come up on offer for a swap so I did this.
> This is the Model reviewed by David Novoselsky on Cloudy nights: -
> http://www.cloudynights.com/item.php?item_id=462
>
> This was reputed to be one of the best 4" APO's ever made.
>
> I have recently taken the following pictures with it: -
> http://www.madpc.co.uk/TMB-100/Copernicus-06-01-09.jpg
>
> http://www.madpc.co.uk/TMB-100/M42-19-12-2008b.jpg
>
> http://www.madpc.co.uk/TMB-100/Moon-06-01-2009.jpg
>
> The Scope delivers a dark background with great contrast so much of
what the
> review says is true.
> This one has the violet coating.
> Another good point is I don't need a reducer / flattener for my 40D
as the
> stars are sharp to the edge.
> The bit I do miss about the FLT-98 is its faster at F6.3 (Near F5.5
with the
> TV reducer flattener) So this seems to allows more light gathering
powers
> for 5-6 min  exposure.
> To get the same amount of data of the 40'd sensor with the TMB
means 8 to 10
> min exposures.
> This is all well and good if my skies would allow such long
exposures
> regularly.
> In reality they don't.
> In some ways I regret letting the FLT 98 go but in other I do not.
> I suppose the question is do I let the TMB go and get another FLT
98 or do I
> persevere with the TMB...
> I'm sure it has loads to offer.
> Oh I'm getting a modified Canon 1000D so this might help??
>
> Regards,
>
> --
> Paul Gordon
> paul.gordon4@...
> http://www.madpc.co.uk
>

#36521 From: "dietmar hager" <dietmar.hager@...>
Date: Fri Jan 30, 2009 5:11 pm
Subject: M 81
sterngucker_...
Send Email Send Email
 
hi guys,

it's been a while since my last post...
my dayjob and other issues kept me quite busy these days,...weeks almost.
nevertheless, I was lucky to find 2 decent nights and time for
imaging, too!
M81 was the target. 8.5 hours is not perfectly much total exp. time,
but enough for an image at least.

the best part was, it has gotten featured on Universe Today.
http://tinyurl.com/almjp3
within this story by Tammy Plottner you will also find a nice overview
taken by Karel Teuwen.

please find all data and my image taken with the 9" TMB And the
Starlight Xpress H16, driven with AA4 on my website:
http://www.stargazer-observatory.com/m81.html

please make sure to see the full size version as well:
http://www.stargazer-observatory.com/81-full.html

thanks for looking!
regards,
Dietmar

#36522 From: "popkrab" <popkrab@...>
Date: Thu Feb 5, 2009 8:35 am
Subject: Re: Will this be a flat field.....
popkrab
Send Email Send Email
 
Hello,

You may see this result what you are looking.

I have TMB 80/600 in WO tube. I Tested with Televue TRF2008. It didn't
match. I found star elongate at the conner. In the other hand, I found
star too elongate than not use Televue reducer!!!

But I found great combination with BORG 0.85X. I measure curvature
with CCDI, it was only 9%.

Best Regards,
Pornchai POP

--- In tmboptical@yahoogroups.com, "paul_dunit" <paul.collins23@...>
wrote:
>
> Hi,
>
>   Quick question... Tmb 80mm x600 with a tele vue 0.8 Fr connected
> directly to a canon 20d. Will this give correct reduction to F6 and a
> flat field across full chip or will it need an extra spacer?
> Thanks,
> Paul...
>

#36523 From: cedric rosada <crosada@...>
Date: Fri Jan 30, 2009 6:45 am
Subject: Re: Will this be a flat field.....
rosadatv60
Send Email Send Email
 
Hi,

you don't need an extra spacer if you use an canon 20D, only T-ring is
required, and you will get the correct distance directly.

If you find your field not completely flat, this may be because of canon
sensor tilt (not // to focal plane) or because you are not at perfect focus
(if you focus on the center of the image, corners may be impacted, you can
try to focus half the way between the center and the borders of the image).

There are pictures of my setup with a 80/480 and TV reducer on the first
link on my website, if you want to check.

Regards,
Cédric
http://www.astrosurf.com/rosada


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

#36524 From: "Jerry Brown" <_jerrybrown4@...>
Date: Sun Feb 1, 2009 5:32 pm
Subject: Re: Advice on TMB 100 F8
jbsportster2004
Send Email Send Email
 
Paul,
These are beautiful images. I would keep it, maybe invest in a FR.

I nearly obtained one of these recently (the deal fell through) and
was concerned about the same issue. I ran across a paper by Craig
Stark discussing F ratio and exposure time. He contends that as long
as the image collected is above the noise floor,  the f ratio is not
important when it comes to image quality. The relationship between f
number and exposure time was driven by nonlinearity in film. Aperture
vs exposure time is the more appropriate thing to trade.

http://www.stark-labs.com/blog/files/tag-ramblings.php

I would not push someone elses research, except I have a great deal
of respect for Craig Stark's opinion

I hope it helps,

Jerry


--- In tmboptical@yahoogroups.com, "madpc" <madpc@...> wrote:
>
> Hi All,
>
> Until recently I had been using an Excellent William Optics FLT-98
When a
> TMB 100 F8 come up on offer for a swap so I did this.
> This is the Model reviewed by David Novoselsky on Cloudy nights: -
> http://www.cloudynights.com/item.php?item_id=462
>
> This was reputed to be one of the best 4" APO's ever made.
>
> I have recently taken the following pictures with it: -
> http://www.madpc.co.uk/TMB-100/Copernicus-06-01-09.jpg
>
> http://www.madpc.co.uk/TMB-100/M42-19-12-2008b.jpg
>
> http://www.madpc.co.uk/TMB-100/Moon-06-01-2009.jpg
>
> The Scope delivers a dark background with great contrast so much of
what the
> review says is true.
> This one has the violet coating.
> Another good point is I don't need a reducer / flattener for my 40D
as the
> stars are sharp to the edge.
> The bit I do miss about the FLT-98 is its faster at F6.3 (Near F5.5
with the
> TV reducer flattener) So this seems to allows more light gathering
powers
> for 5-6 min  exposure.
> To get the same amount of data of the 40'd sensor with the TMB
means 8 to 10
> min exposures.
> This is all well and good if my skies would allow such long
exposures
> regularly.
> In reality they don't.
> In some ways I regret letting the FLT 98 go but in other I do not.
> I suppose the question is do I let the TMB go and get another FLT
98 or do I
> persevere with the TMB...
> I'm sure it has loads to offer.
> Oh I'm getting a modified Canon 1000D so this might help??
>
> Regards,
>
> --
> Paul Gordon
> paul.gordon4@...
> http://www.madpc.co.uk
>

#36525 From: Mike Dodd <mike@...>
Date: Sun Feb 15, 2009 6:41 pm
Subject: Re: Three nights on the Horsehead
doddm2001
Send Email Send Email
 
Greg Beeke wrote:
> Comment ant critique most welcome
> Greg
> http://tinyurl.com/akhjnb

""not found" was what I saw when I tried your link, Greg:

Not Found

The requested URL
/~cosmicshed/Nebulae_&_Clusters/slides/Horsehead_2009_01_16.html was not
found on this server.

--
Mike

Mike Dodd
Montpelier, VA USA
http://astronomy.mdodd.com

#36526 From: "madpc" <madpc@...>
Date: Sun Feb 15, 2009 11:07 pm
Subject: RE: Advice on TMB 100 F8
madpc123
Send Email Send Email
 
HI David,



No the image was not cropped.. I didn't downgrade as such I brought the
1000D as it performance was similar to the

40D for Imaging (I didn't want to modify my 40D but keep it for daytime
photography.



I don't use the Canon TC with the Camera for Astro photography just a laptop
and live view.



Regards,

--

Paul Gordon

madpc@...



From: tmboptical@yahoogroups.com [mailto:tmboptical@yahoogroups.com] On
Behalf Of dthorman1@...
Sent: 30 January 2009 07:33
To: tmboptical@yahoogroups.com
Subject: Re: [tmboptical] Advice on TMB 100 F8



Hi Paul,
My Dad has a TMB 100/800 Classic I am quite impressed with though he
doesn't use it for imaging. I don't have any experience with an FLT 98 but
even
then I am inclined to advise on keeping the TMB. As you said, it has been
often stated to be one of the best 4" apos ever made if not THE best. Buuuut
if
you don't use it much for visual you might be better served with a faster
scope. But then again you could use a focal reducer on the TMB. I personally

don't care much for really short F refractors but the majority of use mine
have
seen has been visual. A lot of EPs start showing signs of lateral color with

the shorter focus apo refractors. And the shorter you go the worse it gets.
Put a 41 Panoptic in an F6 and look at the moon off axis and you'll see what

I mean. Looks like someone took a tricolor image and didn't merge it
correctly. Even my F7s do this with that EP. And as you have found, the
longer F
creates a longer radius of field curvature eliminating the need for a
flattener.
Well, almost. You do have a little corner stretch there in your M42/Running
Man shot but it's not as much as I expected. Truly hardly noticeable. My F7
6"
and 30D produce more corner stretch than that without the flattener and I
would have to think that it has a longer radius of curvature. Nice shot BTW.

Did you crop it?
A modded DSLR might reduce your exposure times by letting more of the
red H, N and S emisions through but not having modded my Canon I'm not sure.

Just curious, why do you want to downgrade from the 20D to a Rebel? I'm
assuming that you use a Canon TC (timer controller)? Are you aware that it
won't
plug into a Rebel without modifying the plug? Of course the cost of modding
the
plug plus the camera might still be less than a 40D.
Anyway, I hope this helps you alleviate any buyers (traders) remorse
about the TMB.

CS,
David
**************From Wall Street to Main Street and everywhere in between,
stay
up-to-date with the latest news. (http://aol.com?ncid=emlcntaolcom00000023)

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





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

#36527 From: Neil Fleming <neilfleming@...>
Date: Sun Feb 15, 2009 10:00 pm
Subject: Re: elliptical star?
neilfleming
Send Email Send Email
 
Could also be pinched optics.  Send Teton Telescopes a pic and see what they
say.
 
   ...Neil


www.flemingastrophotography.com 
Direct from Boston - brilliant diamonds in pea soup
Also check out the astro_narrowband Yahoo group!

--- On Mon, 2/9/09, Zing <ufo_forever@...> wrote:

From: Zing <ufo_forever@...>
Subject: [tmboptical] elliptical star?
To: tmboptical@yahoogroups.com
Date: Monday, February 9, 2009, 4:33 PM

Hi all,

I was wondering if you guys could shed some light on this. I was doing
basic star test on my TMB 115/LW and I noticed that when I go slightly
out of focuse (both directions) the rings appeared to be elliptical.
I'm guessing that's the sign of astigmatism? What could be causing
this?

Regards,

Zing



------------------------------------

Yahoo! Groups Links





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

#36528 From: "popkrab" <popkrab@...>
Date: Sun Feb 15, 2009 7:42 pm
Subject: Re: Focal reducer question
popkrab
Send Email Send Email
 
Hello,

If you want flat field with TMB 80/600.  I have try with BORG 0.85X
reducer. This work great less than 9% curvature. It almost act like
dedicated field flattener. You need 2.5 mm. space ring too.

http://www.darasart.com/webboard/Question.asp?GID=3375

(Thai language but you can see images)

POP

--- In tmboptical@yahoogroups.com, "Pat" <derbycitystargazer@...> wrote:
>
> I am new to using a refractor.  I have an 80mm f7.5 TMB super-apo.
I am looking for a focal
> reducer, but am unsure what to purchase.  The scope will be used for
some
> astrophotography, both planetary and deep sky.  Any recommendations
would be most
> appreciated.
>
> Clear skies!
>

#36529 From: "madpc" <madpc@...>
Date: Mon Feb 16, 2009 7:05 am
Subject: RE: Three nights on the Horsehead
madpc123
Send Email Send Email
 
Hi Greg,



An excellent image!



I think the link is broken you need to use: -



http://www.madpc.net/~cosmicshed/Nebulae%20
<http://www.madpc.net/~cosmicshed/Nebulae%20&%20Clusters/slides/Horsehead_20
09_01_16c.html> &%20Clusters/slides/Horsehead_2009_01_16c.html



You haven't put the underscores between Nebulae_&_Clusters.

As Its a Unix web server it needs something between the spaces J



Regards,

--

Paul Gordon

madpc@...



From: tmboptical@yahoogroups.com [mailto:tmboptical@yahoogroups.com] On
Behalf Of Greg Beeke
Sent: 02 February 2009 20:45
To: tmboptical@yahoogroups.com
Subject: [tmboptical] Three nights on the Horsehead



Hi,

The recent spell of three clear nights allowed me to collect some
decent data on this familiar target. I managed just over 4 hours of
photons. I'm pleased with the result, though it was a bit of a trial
getting the calibration right on one of the sets of raw images for
some reason. I used my modified Canon 20D, IDAS filter and TMB152.
Calibration in IRIS and post processing in Photoshop.

Comment ant critique most welcome

Greg

http://tinyurl.com/akhjnb





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

#36530 From: "Terry Tuggle" <tlt284@...>
Date: Mon Feb 16, 2009 9:56 am
Subject: RE: Will this be a flat field.....
terry_tuggle
Send Email Send Email
 
David,

      Yes; it is from the mounting flange.



Terry

http://www.geocities.com/tlt284@sbcglobal.net/terryshuntofthemonth/

   _____

From: tmboptical@yahoogroups.com [mailto:tmboptical@yahoogroups.com] On
Behalf Of dthorman1@...
Sent: Friday, January 30, 2009 1:42 AM
To: tmboptical@yahoogroups.com
Subject: Re: [tmboptical] Will this be a flat field.....



Terry and Paul
And an EOS camera takes up 44mm of that. Is that 55-57mm measurement
taken from the mounting flange of the FR or the center of the back element?
Or
somewhere else?

CS,
David
**************From Wall Street to Main Street and everywhere in between,
stay
up-to-date with the latest news. (http://aol.com?
<http://aol.com?ncid=emlcntaolcom00000023> ncid=emlcntaolcom00000023)

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





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

#36531 From: "Terry Tuggle" <tlt284@...>
Date: Mon Feb 16, 2009 10:06 am
Subject: RE: M 81
terry_tuggle
Send Email Send Email
 
Diets,

      That is a beauty!



Terry

http://www.geocities.com/tlt284@sbcglobal.net/terryshuntofthemonth/

   _____

From: tmboptical@yahoogroups.com [mailto:tmboptical@yahoogroups.com] On
Behalf Of dietmar hager
Sent: Friday, January 30, 2009 11:12 AM
To: tmboptical@yahoogroups.com
Subject: [tmboptical] M 81



hi guys,

it's been a while since my last post...
my dayjob and other issues kept me quite busy these days,...weeks almost.
nevertheless, I was lucky to find 2 decent nights and time for
imaging, too!
M81 was the target. 8.5 hours is not perfectly much total exp. time,
but enough for an image at least.

the best part was, it has gotten featured on Universe Today.
http://tinyurl. <http://tinyurl.com/almjp3> com/almjp3
within this story by Tammy Plottner you will also find a nice overview
taken by Karel Teuwen.

please find all data and my image taken with the 9" TMB And the
Starlight Xpress H16, driven with AA4 on my website:
http://www.stargaze <http://www.stargazer-observatory.com/m81.html>
r-observatory.com/m81.html

please make sure to see the full size version as well:
http://www.stargaze <http://www.stargazer-observatory.com/81-full.html>
r-observatory.com/81-full.html

thanks for looking!
regards,
Dietmar





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

#36532 From: "Tube Tim" <potentate@...>
Date: Wed Feb 18, 2009 2:33 pm
Subject: Re: M 81
limunary
Send Email Send Email
 
>--- In tmboptical@yahoogroups.com, "dietmar hager"
><dietmar.hager@...> wrote:
>

Excellent - excellent image.  Thanks for posting it.

Best Regards,

Tim

> hi guys,
>
> it's been a while since my last post...
> my dayjob and other issues kept me quite busy these days,...weeks
almost.
> nevertheless, I was lucky to find 2 decent nights and time for
> imaging, too!
> M81 was the target. 8.5 hours is not perfectly much total exp. time,
> but enough for an image at least.
>
> the best part was, it has gotten featured on Universe Today.
> http://tinyurl.com/almjp3
> within this story by Tammy Plottner you will also find a nice overview
> taken by Karel Teuwen.
>
> please find all data and my image taken with the 9" TMB And the
> Starlight Xpress H16, driven with AA4 on my website:
> http://www.stargazer-observatory.com/m81.html
>
> please make sure to see the full size version as well:
> http://www.stargazer-observatory.com/81-full.html
>
> thanks for looking!
> regards,
> Dietmar
>

#36533 From: "tommack7882" <tommack@...>
Date: Sun Feb 22, 2009 12:53 pm
Subject: Re: Will this be a flat field.....
tommack7882
Send Email Send Email
 
---
>

>
>
> Terry
>
> http://www.geocities.com/tlt284@.../terryshuntofthemonth/
>
>   _____
>
>Terry,
Please tell us more about the Vanguard RC you have posted in the
equpment section of your website.  What a marvelous instrument.

Thanks,
Tom

#36534 From: "Terry Tuggle" <tlt284@...>
Date: Mon Feb 23, 2009 1:10 am
Subject: RE: Re: Will this be a flat field.....
terry_tuggle
Send Email Send Email
 
Hi Tom,

      These scopes were discontinued not long after the first few were sold.
Unfortunately they did not know allot about optics as they reduced the light
path down to 38mm using a coned reducer which cause reflected light to cross
the primary light path. The RC optics has a 100mm image circle, made by
Oldham Optical in the UK. I am planning to open up the rear cell using an
RCOS solid Flange adapter @ 4.O625 diameter.

http://www.rcopticalsystems.com/accessories/fia_100mm.html

and I am going to upgrade to a Van Slyke secondary focuser with RoboFocus
incorporating four vanes:

http://www.observatory.org/spiders.htm



      This should solve the bad Optics they were experiencing! <G> It is very
unfortunate they did not realize what was going on with the cone reducer
they installed, other than that is a good design. I did have to add a
counterweight in front of the fork before it would remain balanced in every
position. The main problem for me is lack of funds to make the improvements
and finish the observatory for it. I will just have to keep saving what I
can to get the scope operational.



Terry

http://www.geocities.com/tlt284@sbcglobal.net/terryshuntofthemonth/

   _____

From: tmboptical@yahoogroups.com [mailto:tmboptical@yahoogroups.com] On
Behalf Of tommack7882
Sent: Sunday, February 22, 2009 6:54 AM
To: tmboptical@yahoogroups.com
Subject: [tmboptical] Re: Will this be a flat field.....



---
>

>
>
> Terry
>
> http://www.geocitie
<http://www.geocities.com/tlt284@.../terryshuntofthemonth/>
s.com/tlt284@.../terryshuntofthemonth/
>
> _____
>
>Terry,
Please tell us more about the Vanguard RC you have posted in the
equpment section of your website. What a marvelous instrument.

Thanks,
Tom





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

#36535 From: "Terry Tuggle" <tlt284@...>
Date: Tue Feb 24, 2009 3:30 pm
Subject: FW: [SBIG] Comet Lulin animation
terry_tuggle
Send Email Send Email
 
Hello All,



      Tom Carrico posted the animation of Comet Lulin on the SBIG group
earlier today; I am passing it on for your view pleasure!

Enjoy,



Terry

http://www.geocities.com/tlt284@sbcglobal.net/terryshuntofthemonth/

   _____

From: SBIG@yahoogroups.com [mailto:SBIG@yahoogroups.com] On Behalf Of Tom
Carrico
Sent: Tuesday, February 24, 2009 12:32 AM
To: SBIG@yahoogroups.com; UncensoredTakGroup@yahoogroups.com
Subject: [SBIG] Comet Lulin animation



Hi all,
Well, this was more fun than a barrel full of monkeys. It is Comet Lulin
from last Saturday night. I acquired 61 each 1 minute images with my FSQ
and STL-11000. With download time and all that it represents about 2
hours of comet movement. I then assembled the animated gif for posting.
You will notice a couple of images are noisy with some vertical lines. I
have no idea what happened, but did not want to remove them because it
would make the movie a bit jumpy. Also, it looks way better in Firefox 3
than IE, but still kinda fun. The geosynchronous satellites add to the
nifty effect.
It is a 29 MB file, be patient and let it load into your browser once
you download it. It runs in only 6 seconds when all loaded.

http://www.ccdargo. <http://www.ccdargo.com/lulin.gif> com/lulin.gif

Let me know what you think.

Tom Carrico





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

#36536 From: "Tube Tim" <potentate@...>
Date: Tue Feb 24, 2009 8:23 pm
Subject: Re: FW: [SBIG] Comet Lulin animation
limunary
Send Email Send Email
 
>--- In tmboptical@yahoogroups.com, "Terry Tuggle" <tlt284@...> wrote:

wow! that is cool.  I take it all the junk flying by is 'roids?
It seems there is a concentration of asteroids in the region.

Tim
>
> Hello All,
>
>
>
>      Tom Carrico posted the animation of Comet Lulin on the SBIG group
> earlier today; I am passing it on for your view pleasure!
>
> Enjoy,
>
>
>
> Terry
>
> http://www.geocities.com/tlt284@.../terryshuntofthemonth/
>
>   _____
>
> From: SBIG@yahoogroups.com [mailto:SBIG@yahoogroups.com] On Behalf
Of Tom
> Carrico
> Sent: Tuesday, February 24, 2009 12:32 AM
> To: SBIG@yahoogroups.com; UncensoredTakGroup@yahoogroups.com
> Subject: [SBIG] Comet Lulin animation
>
>
>
> Hi all,
> Well, this was more fun than a barrel full of monkeys. It is Comet
Lulin
> from last Saturday night. I acquired 61 each 1 minute images with my
FSQ
> and STL-11000. With download time and all that it represents about 2
> hours of comet movement. I then assembled the animated gif for posting.
> You will notice a couple of images are noisy with some vertical
lines. I
> have no idea what happened, but did not want to remove them because it
> would make the movie a bit jumpy. Also, it looks way better in
Firefox 3
> than IE, but still kinda fun. The geosynchronous satellites add to the
> nifty effect.
> It is a 29 MB file, be patient and let it load into your browser once
> you download it. It runs in only 6 seconds when all loaded.
>
> http://www.ccdargo. <http://www.ccdargo.com/lulin.gif> com/lulin.gif
>
> Let me know what you think.
>
> Tom Carrico
>
>
>
>
>
> [Non-text portions of this message have been removed]
>

#36537 From: "Terry Tuggle" <tlt284@...>
Date: Wed Feb 25, 2009 2:00 am
Subject: RE: Re: FW: [SBIG] Comet Lulin animation
terry_tuggle
Send Email Send Email
 
Hi Tim,

      Not sure but I think they are satellites passing thru.



Terry

http://www.geocities.com/tlt284@sbcglobal.net/terryshuntofthemonth/

   _____

From: tmboptical@yahoogroups.com [mailto:tmboptical@yahoogroups.com] On
Behalf Of Tube Tim
Sent: Tuesday, February 24, 2009 2:23 PM
To: tmboptical@yahoogroups.com
Subject: [tmboptical] Re: FW: [SBIG] Comet Lulin animation



>--- In tmboptical@yahoogro <mailto:tmboptical%40yahoogroups.com> ups.com,
"Terry Tuggle" <tlt284@...> wrote:

wow! that is cool. I take it all the junk flying by is 'roids?
It seems there is a concentration of asteroids in the region.

Tim
>
> Hello All,
>
>
>
> Tom Carrico posted the animation of Comet Lulin on the SBIG group
> earlier today; I am passing it on for your view pleasure!
>
> Enjoy,
>
>
>
> Terry
>
> http://www.geocitie
<http://www.geocities.com/tlt284@.../terryshuntofthemonth/>
s.com/tlt284@.../terryshuntofthemonth/
>
> _____
>
> From: SBIG@yahoogroups. <mailto:SBIG%40yahoogroups.com> com
[mailto:SBIG@yahoogroups. <mailto:SBIG%40yahoogroups.com> com] On Behalf
Of Tom
> Carrico
> Sent: Tuesday, February 24, 2009 12:32 AM
> To: SBIG@yahoogroups. <mailto:SBIG%40yahoogroups.com> com;
UncensoredTakGroup@ <mailto:UncensoredTakGroup%40yahoogroups.com>
yahoogroups.com
> Subject: [SBIG] Comet Lulin animation
>
>
>
> Hi all,
> Well, this was more fun than a barrel full of monkeys. It is Comet
Lulin
> from last Saturday night. I acquired 61 each 1 minute images with my
FSQ
> and STL-11000. With download time and all that it represents about 2
> hours of comet movement. I then assembled the animated gif for posting.
> You will notice a couple of images are noisy with some vertical
lines. I
> have no idea what happened, but did not want to remove them because it
> would make the movie a bit jumpy. Also, it looks way better in
Firefox 3
> than IE, but still kinda fun. The geosynchronous satellites add to the
> nifty effect.
> It is a 29 MB file, be patient and let it load into your browser once
> you download it. It runs in only 6 seconds when all loaded.
>
> http://www.ccdargo. <http://www.ccdargo.
<http://www.ccdargo.com/lulin.gif> com/lulin.gif> com/lulin.gif
>
> Let me know what you think.
>
> Tom Carrico
>
>
>
>
>
> [Non-text portions of this message have been removed]
>





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

#36538 From: tmboptical@yahoogroups.com
Date: Thu Feb 26, 2009 5:13 pm
Subject: New file uploaded to tmboptical
tmboptical@yahoogroups.com
Send Email Send Email
 
Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the tmboptical
group.

   File        : /Jim Phillips/Feb26-09SaturnJHP8M-16zt.jpg
   Uploaded by : jimhp29401us <thefamily90@...>
   Description : Saturn, Excellent Seeing

You can access this file at the URL:
http://groups.yahoo.com/group/tmboptical/files/Jim%20Phillips/Feb26-09SaturnJHP8\
M-16zt.jpg

To learn more about file sharing for your group, please visit:
http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.htmlfiles

Regards,

jimhp29401us <thefamily90@...>

#36539 From: "Junn" <dchavezjr@...>
Date: Wed Feb 25, 2009 9:22 am
Subject: Threading Specification
junn_kulit
Send Email Send Email
 
Hello to all,

I am a proud owner of a TMB 105/650 CNC telescope. It came with a
100mm extension tube and the other tubes (30mm and 60mm) were from
Markus of APM.

Can somebody please tell me the specific "male" threading measurements
or specs used in the extension tubes.

Thanks in advance.

Junn

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