The images are too small to evaluate properly. One needs to look at the shape of the stars to tell anything. At this size, I really don't see anything that...
33012
Roger Hamlett
ttelmah
Oct 1, 2004 8:15 am
... Whoa.... The suggestion to sample at half the 'seeing', is a common _and wrong_ application of Nyquists theorem... Nyquist, shows that for sinusoidal...
33013
Jason Hissong
jhissong
Oct 1, 2004 12:28 pm
Ron, Thanks for such a quick reply. I will post the FITS files on my website. One way to describe this is the stars look fine, however, it is like the...
33014
rhoowl@...
rhoowl
Oct 1, 2004 12:33 pm
roger you're trying to extrapolate a 2 dimensional system from a linear set of equations from two unrelated occurances. nyquists theorom deals with the...
33015
rhoowl@...
rhoowl
Oct 1, 2004 12:46 pm
hi actually...i'm looking to buy a better camera than what i have now....and i[m looking into this issue very closely...this came up as a point....so i started...
33016
Charles Bell
quantumhyper...
Oct 1, 2004 12:51 pm
http://cfa-www.harvard.edu/iau/lists/RecentSupernovae.html SN Host Galaxy Date R.A. Decl. Offset Mag. Disc. Ref. SN...
33017
Michael Downing
astroden2003
Oct 1, 2004 1:08 pm
Hi Guys I was wondering if some of you could look at this picture and tell me if it is too dark or light or is it all right ...
33018
eja24601
Oct 1, 2004 1:13 pm
Jason, The pictures do indeed look too small for me to judge as well, but as far as the "ring" (especially with the 2nd picture), did it expand and eventually...
33019
Randy Nulman
randy_nulman
Oct 1, 2004 1:19 pm
Looks pretty dark on my monitor. Randy Nulman ... me if it ... photo looks ... dark on my...
33020
Michael Downing
astroden2003
Oct 1, 2004 2:32 pm
Thanks Randy I made adjustments to the curve how does it look now? Looks like my 21" CRT at work is on par with you all Michael Downing www.astroden.com...
33021
Wodaski Yahoo
rwodaski
Oct 1, 2004 2:57 pm
I viewed the image on a calibrated monitor, a Sony Artisan, and it looks just about right on that monitor. If anything, it might be just every so slightly...
33022
Michael Downing
astroden2003
Oct 1, 2004 3:07 pm
Excellent, just what I was looking for Ron, Thank you! I tweaked it a bit more so should be right on I can now setup my home PC with the 19" Sony LCD and IBM...
33023
Wodaski Yahoo
rwodaski
Oct 1, 2004 3:08 pm
Roger's discussion of the Nyquist theorem, and the sampling required to get all the available information, is accurate. It matches materials I have read ...
33024
Skyloverz@...
skyloverz2002
Oct 1, 2004 3:19 pm
Anyone know the RGB weights for FLI supplied filters....? IMG-6303 chip cam Thanx Bruce [Non-text portions of this message have been removed]...
33025
Wodaski Yahoo
rwodaski
Oct 1, 2004 3:55 pm
I had a loose secondary assembly once that cause big shifts. The collar around the secondary became loose; the three collimation screws were not loose. Ron...
33026
rdcrisp
Oct 1, 2004 4:30 pm
... looks ... every so ... Ron this brings up the issue of how one goes about running "Color Management" How can we mere mortals accomplish this? It seems of...
33027
Wodaski Yahoo
rwodaski
Oct 1, 2004 4:35 pm
The only way to manage color is to calibrate every device (including paper) that you use, using appropriate tools (software and devices). It gets awfully...
33028
aajohnah
mkeitel2000
Oct 1, 2004 4:45 pm
Richard, The AP 1200 mount will handle that weight Just use the longer 28" shaft on it I have about 105lbs on mine and it tracks and points perfectly Going to...
33029
Dennis Persyk
dennis_persyk
Oct 1, 2004 4:50 pm
DWB-111, a/k/a the Propeller Nebula, is a faint emission nebula in Cygnus. I imaged an LRGB of 50 minute components comprising 5- minuted unguided subframes....
33030
Hugh Nunnally
hpn31958
Oct 1, 2004 5:44 pm
Hello all, I am trying to decide on 1 software purchase for Image processing. I already have CCDSoft V5, CCDOpps, and PhotoShop Elements. I downloaded a trail...
33031
rdcrisp
Oct 1, 2004 6:03 pm
... one too? ... reminds me of the old .50cal sniper rifle. Some of the soldiers called it the ATT rifle because it could "reach out and touch someone". lol ...
33032
rdcrisp
Oct 1, 2004 6:05 pm
... that's a very neat and obscure object Dennis. I like it. Thanks for sharing. Richard...
33033
Bert Katzung
katzung1
Oct 1, 2004 7:10 pm
Hi Hugh: If you are into imaging, I would recommend MaxIm CCD/DL (the full program with processing and camera control both) AND Photoshop CS. These are two ...
33034
steve.holak@...
sholak2000
Oct 1, 2004 7:32 pm
I've only been CCD imaging a month, with an ST-2000XM, and I'm getting progressively better with tuning my system and mount (and processing), so I'm not too...
33035
Douglas B. George
maximccd
Oct 1, 2004 7:32 pm
... Actually, to properly represent that shape without significant aliasing would require much higher sampling than that. Non-sinusoidal shapes are ...
33036
Hugh Nunnally
hpn31958
Oct 1, 2004 8:12 pm
Thanks Bert! Believe I will buy PhotoShop instead of Maxim although I must say that Maxin 4.0 is a nice product. Maxim is missing a"lasso" style command. HN ...
33037
Randy Nulman
randy_nulman
Oct 1, 2004 8:19 pm
Michael, That looks MUCH better on my monitor. Of course, my monitor is not calibrated as well as Ron's Artisan...but I saw that he mentioned it looked pretty...
33038
Randy Nulman
randy_nulman
Oct 1, 2004 8:25 pm
Nice Dennis! There are still some gradient issues in the image, and I would suggest using Ron's PS technique (or his software...or Maxim's gradient removal...
33039
Randy Nulman
randy_nulman
Oct 1, 2004 8:33 pm
I can't comment on PS "elements"; vs a full version of PS "CS", but I can tell you Photoshop CS is almost a "must" for final image processing. I agree with...
33040
Randy Nulman
randy_nulman
Oct 1, 2004 8:44 pm
Hi, Looking forward to seeing your images! With your previous film and Photoshop experience, you should climb the learning curve quickly <g> The typical...
