Meade 8" SCT 80mm APO Refractor ATIK 383L/3l4e Mono CCD's Nautilus 1.25" F/W w Baader Ha,LRGB set DMK21 Webcam TV 6mm/14mm Delos; 24Pan eyepieces Software:CS6;Nebulostiy3;Sequence Gen.Pro Member of RASC & Local Astronomy Group
Quote:Are you shooting above a roofline? I seem to get this exact band if I'm too close to my roof. I'm very interested to see if this is what caused this. I can only think that its the heat from the roof. Are you using live view and if so, turn it off. Also, try and use an AC Adapter for the XSi and don't use batteries at they heat up as well.
Quote: Give that flattner a try. Their reccomendations are to have the flattner 55-56mm from the camera chip. Your T-ring is likely 10mm. Add that 10mm to the Canon standard of 44mm, and you should be fine. You may need a small spacer of 1-2mm. I used a thin rubber ring from a plumming shop...79cents.
Quote:have you seen this thread Bobhttp://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Number/4210363/page/3/view/collapsed/sb/5/o/all/fpart/1
Quote:Quote:have you seen this thread Bobhttp://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Number/4210363/page/3/view/collapsed/sb/5/o/all/fpart/1 Thanks Jerr.I skimmed that thread, but need to go back over it post by post. I'm not using any camera control software, but I do use mirror lock-up.Bob
Quote:Bob, Not sure if this one has been asked or not. Is your camera modified or have you taken it apart? If you got it used, does it show signs that it was opened? The color could also be a sign of stress on the chip.