Which image in Greer's page there is the crescent you see? I ran down and peeked into mine and can't figure out what we're talking about..... Could be lack of caffeine, tho....
scott
Quote:
Originally Posted by Garyh
Hi Timelord,
sounds ok to me!!!.... 
This page might help understand the reflections on sees.
http://www.fpi-protostar.com/bgreer/collim.htm
A thin crescent from the inside of the focusers drawtube (on primary mirror side) sounds right and I get the same in my newt..
cheers Gary |