Thanks Ric, Mike and Tamtarn
You all keep commenting on focus. I use a Hardman mask, have a reasonable quality 15" Widescreen LCD monitor, HP/Compaq, reading glasses 9 month old, don't know what else to do.
Must have another look in constructing a KnifeEdge Focuser.
Mike
re tight FOV, I think the size of the CCD chip in the DSI Pro is the culprit in that. It's not like in the Canon
At present using a 250mm x 1530mm FL Newtonian. Even 30 years ago with a 12.5" F6 and 35mm film the FOV was much greater if I remember rightly.
Must talk to father Xmas re a Canon Camera
