Quote:
Originally Posted by von Tom
A quick processing of Saturn tonight. Canon EOS 550D + 5x Powermate on a Sky-Watcher Goto Dobsonian. 1/60s, ISO 3200, 640x480 crop video mode, 60fps. Stacked in Registax and sharpening done in PS. Seeing was pretty good.
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A very good image Tom! I think that you and I are one of the few people who are using DSLR cameras to image Saturn. I like that you were able to go up to ISO 3200 with your 550D; I experienced too much noise above ISO 1600 using the same camera. Rather than using the 640x480 crop video mode at 60 fps I used a screen capture program to record a portion of the DSLR's live view screen. I think that there are advantages to both techniques -- yours is better because you can capture 60 frames per second compared to my 22 fps; mine may offer an advantage in that I can crop the 640x480 live view screen by selecting a portion of that screen with the screen capture program. In case you didn't see my earlier thread from May 22 and I attached my Saturn image from that thread using a 550D at ISO 1600, a 2x barlow and an 8 inch Celestron SCT.