Quote:
Originally Posted by alistairsam
That's really nice Peter, love the sharpness
I keep wondering, is it the mirror or the rigidity of your cf tube or both
How long were your subs
Do you have a similar one with your 8inch f4? Would love to see comparison of both ota's
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The subs are 10 minutes long, I do have a shot from my 8 inch but it was one of the first shots I ever did. Thus comparison is not great. The one thing I can say about rigidity is that my guider is one of orions finder guiders. It is attached to the tube with a regular finder bracket and is held in place with an O ring and 3 screws. With my 8 inch guiding was impossible until I switched to an OAG, with my carbon tube it just works. I have improved my polar alignments and kitted out my mount with a belt drive since the new scope too so I cant say that it is all the carbon tube, but it may have played a role.