M13 with 20D

This is my first attempt at prime focus photography with the 20d (unmodified). The image is a combination of 8 x 5 minute at ISO 800 with 4 darks. I used Photoshop CS2, AIP4WIN 2.0 and Picture Window Pro for post processing.

Prime focus TEC 140 f/7

http://www.samsastro.com/images/deepsky/M013b.htm


Sam

M15 from Last night after struggling with tracking on my CG5(old) mount. Taken using Canon20D(Unmod) 22X20sec stacked in MaxDSLR & reprocessing little on Paint.Net, cropped.

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Nice shot! I like the wide field and you captured a couple of galaxies also. Here's my version of M13 from a couple of weeks ago for comparison using a 20Da on my 1989 AP152 Starfire at prime focus of 1300mm. 16 x 4 min at ISO800. I'm still having some problems figuring out how to take and use flat field frames though. I think I do better not using them at this point. I have a few dust specs on the sensor so I can't stretch the background as much as I would like. Any tips from the boys out there would be appreciated though.

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