Hi to all my friends i'm trying to set my autoguide to get long exposure shots without some moving on the final image at long focal length, it was very difficult to guide in DEC axis cause the backlash at low speed driving, so i corrected a nice bit of backlash with the worm gear spacing and the spur gear motor spacing, and now it works quite cool, this is a test for PHD at 2800mm focal length on m102 3 subs 12.5 minutes each sub with 1200D canon eos unmodified,
cheers!
here the pic
http://eminem2pacblog.blogspot.it/20...-sky-m102.html
