SBIG ST-2000XCM - better pixel size over the DSI III and my images show it "Pixel Size: 7.4 x 7.4 microns " DSI III 6.5x.6.5 microns So, why do you find the ST at the larger pixel size to be better? I am curious. Blueman
-------------------- 14.5" Starmaster with ServoCat and Argo Navis
TV NP101 f/5.4 APO
WO 80mm f/6 APO Televue .8 focal reducer
SBig ST2000xm with CFW-9 filter wheel
Astronomk filters, RGBL, HA,O-III, S-II
Losmandy G-11 Gemini Auto-guided