Does anyone know what the wavefront error is of an average C8 OTA? I'm thinking of buying one if the expected wavefront error is better than 1/4 wave p.t.v. Thanks for your help.
Wavefront error of an average C8 OTA??
Started by pacorod, 01/08/2004 01:30AM
Posted 01/08/2004 01:30AM
Opening Post
Posted 01/08/2004 02:18PM
#1
I've owned over 10 c-8 OTA and All were at least 1/4 (the few Meades I've owned were about the same BTW). I had one "8" Ultima PEC" that was the finet optics I ever owned - I'd bet 1/10 or better through the whole tube - simply amazing optics. I used to LOVE blowing away thos 4-5" APO's. I have a current C-9.25 that is around 1/6 through the whole tube (estimated by previous owner - I only have a week or so on it with lousy seeing) - which seems about average for these tubes.
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