I agree with Eric's comments. On the assumption that you truly want, "very flat wide-field photography", then an RC will not deliver that. You're far...
71108
Ron Wodaski
rwodaski
May 16, 2012 5:23 pm
One of our guys at the observatory is a specialist in collimating the E180s. I've never done it myself. I know we bought him _something_ from Texas Nautical to...
71107
Stan
stan_ccd
May 16, 2012 4:10 pm
Didn't the scope come with a collimation aid and instructions? (of course the instructions are probably in "Japlingish") If I recall correctly the 180 is a...
71106
Stan
stan_ccd
May 16, 2012 4:03 pm
... Yes. Bigger is better! <g> Stan...
71105
larryl
lmleitch02
May 16, 2012 1:57 pm
Hi, I have the Tak 180 scope and love it. There are many collimation procedures on the net. Does anybody have one to recommend? I have tried using: 1. Howie...
71104
jfmiller7@...
jfmiller7
May 16, 2012 2:24 am
Stan and Mark, thanks for your input. I was curious given the pixel per arc-second calculations if the what amounts to the same size field of view would have...
71103
Ron Wodaski
rwodaski
May 15, 2012 2:51 pm
Ron Wodaski...
71102
echesak@...
echesak...
May 15, 2012 2:40 pm
I know you mentioned RC, but have you given refractors a thought? Also, I've owned 3 G11's and loved each one. But the MachGTO that I have now is a far...
71101
Ron Wodaski
rwodaski
May 15, 2012 6:11 am
You can learn more about the Foundation here: http://blog.tzecmaun.org Right now, we have closed our smaller telescopes and are focusing on getting a one-meter...
71100
Mountain Master
rjcalliger
May 15, 2012 6:05 am
Sweet!! :-) are you scheduling public viewing time>? and Is your book at bookstores --Barnes and Noble,, etc? De oppresso liber...
71099
Mike Dodd
doddm2001
May 15, 2012 2:36 am
... To the list.... I have banned this person because of the spam posting. I don't know how the message made it to the list -- it did not show up first for...
71097
Mike Dodd
doddm2001
May 15, 2012 12:52 am
... I absolutely agree with this statement. Two of my favorite images are details in the Rosette Nebula, one in the southeast region: ...
71096
Stan
stan_ccd
May 15, 2012 12:01 am
... Collimation is always necessary for a reflector. What service could you possibly need? An OTA doesn't really wear out or break, short of some disaster. ......
71095
Ron Wodaski
rwodaski
May 14, 2012 10:24 pm
Don't push it too far, or you'll end up with a truly dream setup: an Astro-Phyiscs Riccardi-Honders. <g> We have one in an observatory at the foundation, and...
71094
rjcalliger
May 14, 2012 10:00 pm
Thanks much...looking to purchase your book BTW!! :-)) Right on the budget..could push it to $14-$15K easily... friend of mine at LLNL working on adaptive...
71093
Ron Wodaski
rwodaski
May 14, 2012 9:36 pm
I could write a book with the details (hee hee) but I've already done that. Allow me to cut to the chase. My basic rules are: * Buy the best mount you can...
71092
Mountain Master
rjcalliger
May 14, 2012 9:23 pm
I'd like to get some thoughts on a new 'scope and camera please..I am "graduating from old Newt and film!":-) I am mainly interested in deep space very flat,...
71091
Mountain Master
rjcalliger
May 14, 2012 9:22 pm
Your M13 is absolutely outstanding....thanks for posting. Rich De oppresso liber ______________________________________________________________...
71090
CurtisC
die_nullte
May 14, 2012 3:02 pm
12.4 min, which is interesting, because I had independently and quite arbitrarily settled on 12 min....
71089
mark_manner_spot_obsrv
mark_manner_...
May 14, 2012 12:02 pm
What does the subexposure calculator say your optimum subexposure should be?...
71088
Jason Ware
galaxy_jason
May 14, 2012 1:19 am
Nice catch! -- -Jason Ware ... VISIT MY ASTROPHOTOGRAPHY HOMEPAGE!! ASTRO IMAGES FOR DOWN-LOAD, TIPS, REPRINTS URL: http://www.galaxyphoto.com ... My Other...
71087
CurtisC
die_nullte
May 13, 2012 11:51 pm
Thanks. Flats, no flats, I get about the same result....
71086
mark_manner_spot_obsrv
mark_manner_...
May 13, 2012 10:42 pm
According to the instructions on the ccdware site, dark subtract, but no need to apply a flat. See link below for full info: ...
71085
CurtisC
die_nullte
May 13, 2012 7:41 pm
I've been pawing through some older messages, and I want to know if I'm reading them correctly. I recently moved to a site with a much darker sky than I had...
71084
Roger Weissinger-Baylon
quicksandastro
May 13, 2012 5:51 pm
Holy Cow! There is amazing stuff on your website! (Photon counting, lucky imaging). And to think that my goal for this evening is to get my telescope aligned...
71083
Stan
stan_ccd
May 13, 2012 4:08 pm
... It could have great advantages in terms of object S/N, depth and real resolution. Those are two very different instruments with correspondingly different...
71082
mark_manner_spot_obsrv
mark_manner_...
May 13, 2012 2:27 pm
Jim, I assume the CDK you mean is the 12.5"? Obviously, that will gather a lot more light than the 6", and unless your seeing is always bad, will have more...
71081
Jim
jfmiller7
May 12, 2012 5:35 pm
I currently have a 6" refractor with a 1094mm focal length paired with an st-8300 which results in 1.02 arc seconds per pixel binned at 1x1. I also have an...
71080
Ugly Dog
shenzistiber
May 12, 2012 9:11 am
<p>The Best Work At Home Business Opportunity<br><a...
71079
Bob Birket
bobsccdimaging
May 9, 2012 12:09 am
I want to thank everyone that replied with all the nice comments on my recent M13 image. I appreciate it very much. Â Clear skies and thanks again, Bob Birket...
