another preliminary...M81--big pic
Posted By Andrew Riehl
Here's an m81 that I took last night as well. The darn clouds rolled in on me, so I couldn't finish it. I wanted another half hour or so of Lum's, plus some color, but the astro gods wouldn't allow it. I've changed my goals around a bit; instead of trying to get lots of so-so images, I'm going to do the time and get a few outstanding ones. I also changed my reducer; Got rid of the Giant Easy Guider and got a standard f/6.3 reducer. It doesn't give me as much speed, but I can now pass my imaging train completely through my forks to hit some of those really neat things up north. The decreased chromatic abberation and extra element in the reducer also is giving me much tighter stars. Anyway, for the image, 11" sct with 6.3 reducer (actually f/6.8 in my configuration). st-2000xm camera/cfw-8 unfiltered at full resolution. exposures= 7@10min each.