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View Full Version here: : Coma Corrector test on 6 inch F3.6 Sc Newt


tornado33
03-04-2006, 09:02 PM
Hi all
I finally adapted the 2 inch focusser eyepiece holder of my Meade 6 inch F3.6 Schmidt Newtonian to take my Multi Purpose Coma Corrector, hoping it would remove some of the coma it exhibits, as it has for users of the larger LXD scopes. It has removed even more coma than I had hoped, only a tiny bit in one corner remains, and that may only be because the collimation is out a bit.
Heres a quick 2 x 100 sec shot of Eta Carina between areas of high cloud.
ISO 1600 In camera NR on, stacked/flatfielded in IRIS , Baader UHCS filter used too. Shot with my modded 350D
Larger version here
http://www.users.on.net/~josiah/mod350d/etacarina6inchmpccflat_filteredsmal l.jpg
I now cant wait to test this system out on the Lagoon and Triffd (if the darn cloud ever clears)
Im amazed to have a scope as fast as F3.6 that now has reasonable star images across the field :)
The scope only cost me $400 when a mate got one for me and himself from the States when he was over there in the late 1980's
I dont know why Meade discontinued them, especially considering how well their larger LXD cousins go.
Scott

Starkler
03-04-2006, 11:33 PM
Looks like it works well Scott :thumbsup:

Ill be looking forward to seeing more of your great widefield shots :)

Itchy
03-04-2006, 11:36 PM
This is beginning to look like a winning combination.

Great work Scott

tornado33
04-04-2006, 08:09 AM
Thanks, I cant wait for some decent weather to try some deeper shots.
Scott

cometcatcher
04-04-2006, 05:34 PM
I second the motion. Your going to get some brilliant images from this little scope now. The stars are so sharp.