http://tech.groups.yahoo.com/group/SDAA_AISIG/ SDAA_AISIG Fri, 06 Nov 2009 18:26:32 GMT sandiegospaul http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2658 http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2658 I'm using an SBIG ST2000 camera and I'm interested in AO. I see AO7 units come up regularly for sale, but not too many AO8's. What is the big difference Tue, 03 Nov 2009 17:22:52 GMT michael.johnson@... http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2657 http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2657 Well I'm still working on them but here are the images Mike ________________________________ From: SDAA_AISIG@yahoogroups.com Tue, 03 Nov 2009 17:17:11 GMT Jeff Lunglhofer http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2656 http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2656 Ahh, I got it. . .oops! If you want more feedback on images, the best thing to do is to post a full resolution image to AISIG. Yahoo shrinks the images down, Tue, 03 Nov 2009 16:58:13 GMT michael.johnson@... http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2655 http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2655 No Look in new photo's on this board Mike ________________________________ From: SDAA_AISIG@yahoogroups.com [mailto:SDAA_AISIG@yahoogroups.com] On Behalf Of Tue, 03 Nov 2009 16:56:49 GMT Jeff Lunglhofer http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2654 http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2654 Are these shots posted on AISIG? -Jeff From: SDAA_AISIG@yahoogroups.com [mailto:SDAA_AISIG@yahoogroups.com] On Behalf Of michael.johnson@... Sent: Tue, 03 Nov 2009 16:41:43 GMT michael.johnson@... http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2653 http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2653 an internal reflection? From what? I don't know what it could be other than dust on my primary or secondary mirrors It could also have dust on the LP filter I Tue, 03 Nov 2009 16:26:06 GMT Bob Nanz http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2652 http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2652 That looks more like an internal reflection to me. Bob ... From: michael.johnson@... To: SDAA_AISIG@yahoogroups.com Sent: Tuesday, November 03, 2009 Tue, 03 Nov 2009 15:30:57 GMT michael.johnson@... http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2651 http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2651 Thanks for the kind words BTW the reason the dust donuts are in different places is because I rotated the bubble 180 The tracking is better that it use it be Tue, 03 Nov 2009 01:21:15 GMT cosmoscrazy http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2650 http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2650 Agreed - very little need for flats with this setup unless there is dust on the sensor. I see one barely visible dust donut - upper left on bubble, lower Tue, 03 Nov 2009 01:19:13 GMT robertc_miller http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2649 http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2649 Hi All! Just POSTED the Orion Regin Locted in my folder Astroblast 12x5 Min 800 asa 55MM Cannon Lens. Cannon 350D Mod. commets welcome Regards Robert Mon, 02 Nov 2009 19:57:21 GMT michael.johnson@... http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2648 http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2648 Thanks Bob I have tried saving as fits but I guess I'm just SW savvy enough every time I try it just turns out crap I had been shooting as BMP when using the Mon, 02 Nov 2009 19:51:40 GMT Bob Nanz http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2647 http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2647 The best way to dark subtract is take and save the images as fits then dark subtract a median of 10 or more darks of the same exposure taken at a similar Mon, 02 Nov 2009 19:33:15 GMT michael.johnson@... http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2646 http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2646 I think there hot pixel as well I had the same problem with the DSI but much worse I think if I can ever figure out how to calibrate my images I might not get Mon, 02 Nov 2009 19:29:10 GMT michael.johnson@... http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2645 http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2645 My scope is a Celestron C-6 on a CG5-NGT mount The capture SW is Maxim DL I'm using an Orion short 80mm and Meade DSI for auto guiding and PHD The camera is an Mon, 02 Nov 2009 18:55:33 GMT Bob Nanz http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2644 http://tech.groups.yahoo.com/group/SDAA_AISIG/message/2644 Tracking and color look good. What scope and exposure did you use. What are the black dots in the Bubble image? What are the vertical (and horizontal) streaks