Sorry for the CCD post, but these are sort of interesting as the field of view is similar to a 35mm camera with the TK1024 sensor in my FLI Dream Machine camera (25mm x 25mm sensor).I used my AP Traveller with a 0.75X telecompressor to give me approximately 470mm focal length. Although grossly undersampled by most measures (~10.8 arc-sec/pixel) the images turned out far better than I expected.I used [SII], Ha and [OIII] filters taking these shots.One thing about that camera/scope configuration: the exposure times can be very short. I was getting 4 color images per night with time to spare.IC1805/IC1795NGC2244 Rosette:Horsehead/Flame (used [SII], Ha and NIR)IC1396Pelican/North American NebulaI realize the colors may turn off many of you. In defense of the color choices, I will point out that the famous "Pillars of Creation" shot from NASA/Hubble was done the same way as most of these images: [SII] = Red, Ha = Green, [OIII] = Blue.Unfortunately my Cust Sci [SII] filter suffers from some pretty bad internal reflections on the brighter stars. I need to see about getting that replaced/fixed._______________________________________________
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Dominic Cantin
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