Joining my talk on photon transfer from the WSP ( http://www.narrowbandimaging.com/ptc_method_wsp2009_page.htm ) is a short examination of what happens...
2974
Mike Sidonio
strongmanmik...
Mar 4, 2009 12:09 pm
After Toms recent mediocre effort on this :-P this is a slight anticlimax but I think it demonstrates the density of this amazing marvel in our southern skies....
2975
john gleason
dvjbaja
Mar 5, 2009 2:06 am
Nice job on this Mike, but really? Let's get real, M13 IS the Great Cluster. Omega Cen needs to go on the Jenny Craig plan. LOL jg...
2976
Chuck Reese
chuckr54
Mar 5, 2009 5:44 am
Richard: Thank you for sharing this. Although I learned from you a while back that the "ideal" count for darks & flats with my KAF-3200ME chip was around 24...
2977
Richard Crisp
rdcrisp
Mar 5, 2009 2:45 pm
Hey Chuck thanks for the comments your experience is precisely why I produced this note I am never content to just do things, I want to know why: otherwise I...
2978
FLI_Imaging_Systems@y...
Mar 7, 2009 1:19 pm
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the FLI_Imaging_Systems group. File :...
2979
Jim Moronski
jmoronski
Mar 7, 2009 1:29 pm
MaxIM DL/CCD Users, I have posted a beta plug-in (in the software folder in the files section) for MaxIM that does the following (most of these features are ...
2980
Dominik Wos
domek_ws
Mar 7, 2009 3:22 pm
I have IMG6303E camera with CFW2-7 and FLI filters, which I am using with my A&M RC250 with double element FF. If you could look at the images from the links...
2981
Lawrence D. Lopez
lawrence_d_l...
Mar 7, 2009 4:50 pm
Dominik: Ouch. The shutter does need cleaning periodically. My Dream Machine shutter was sticky and I cleaned it with alcohol. Unless the shutter has been...
2982
Mike Sidonio
strongmanmik...
Mar 8, 2009 12:16 pm
... Well you've seen'em both so I recon you would know..? :-) Mike...
2983
flyrcairplanes
Mar 11, 2009 6:51 pm
I was reviewing post from 2007 about large reflections being an issue with people using large CCD chips in close proximity to field flatteners. I am about to...
2984
Richard Crisp
rdcrisp
Mar 11, 2009 7:06 pm
yes that was fixed it turned out to be an anomaly caused by the edges of the filters not being blacked out many different ways to fix it have been successful...
2985
Richard Crisp
rdcrisp
Mar 11, 2009 7:08 pm
I did the first fix to show that the problem is with the filter edges here's that report from back in 2007 ...
2986
flyrcairplanes
Mar 11, 2009 7:46 pm
Thanks Richard, I think I am just going to check your website first from now on:). So I assume that the manufacturers of square filters have corrected this...
2987
Tim Khan
timkhan
Mar 11, 2009 8:18 pm
In addition to Richard's suggestions: Reflections from a field flattener really is not the issue, it is more of a coatings issue with the filter...
2988
Richard Crisp
rdcrisp
Mar 11, 2009 8:18 pm
I haven't bought filters in over two years so I don't know about that  what I do know is you can mount the carousel flipped over to solve the problem if it...
2989
Richard Crisp
rdcrisp
Mar 11, 2009 8:35 pm
right  the initial anomaly was due to filter edge problems as discussed  however when that is corrected I have found a difference with some filters...
2990
bradgregley10
Mar 12, 2009 3:32 am
I agree with Tim. The problem was worse with some brands of filters than others, so chose well. I can tell you from experience that both Astronomik (the best)...
2991
maxmsm
Mar 12, 2009 7:41 pm
Oddly, My FLI LRGB set has reflection obvious halos when used with a refractor with a field flattner -FSQ 106N. No problems on a reflector. Max...
2992
Richard Crisp
rdcrisp
Mar 12, 2009 8:20 pm
It is worth noting that the focal ratio can play a role in this.  fast optics have highly curved surfaces and those dissipate light energy quickly by the...
2993
nkv555
Mar 13, 2009 5:24 am
How to flip over drive sprocket wheel? The wheels don't go out. Help me don't crush my CW-5-7 please....
2994
Richard Crisp
rdcrisp
Mar 13, 2009 5:29 am
you can very carefully pry the plastic toothed wheel off the brass part see the photo on page 12 of this PDF ...
2995
Tim Khan
timkhan
Mar 13, 2009 2:31 pm
Greg, Interesting have you tried both Badder and Astronomiks? Also, What is the Fratio that you are imaging at? Tim ... From: bradgregley10...
2996
flyrcairplanes
Mar 13, 2009 3:58 pm
Hello Tim, So would FLI reverse the internal wheel on Filter wheels newly purchased to create that filter mask or could their be a downside if not necessary? ...
2997
Tim Khan
timkhan
Mar 13, 2009 5:33 pm
Well, that would be FLIs call, but as Richard said it is easily filp-able.. The only problem with that is a small reflective anodized side may be an issue on...
2998
Richard Crisp
rdcrisp
Mar 13, 2009 6:37 pm
It was me suggesting flipping over the carousel, Jeff. I have done it back when the problem first arose in early 2007, and it fixed the problem with the...
2999
Richard Crisp
rdcrisp
Mar 13, 2009 6:40 pm
some day you guys will encounter an optical configuration that requires you to flip all the filters over to change the side the AR coating is on to avoid star...
3000
flyrcairplanes
Mar 13, 2009 11:18 pm
Got it. I somehow had the impression that Tim was working for FLI. Ooops. Anyway I figure the wheel would probably be easy to flip but I always hate to risk...
3001
Richard Crisp
rdcrisp
Mar 13, 2009 11:47 pm
neither Tim or I work for FLI Jeff I like to solve hardware and technology problems though :-) ... From: flyrcairplanes To: FLI_Imaging_Systems@yahoogroups.com...
