Posted By Doug Walton
I have an 8" f/5 high-end reflector
I'd like a moderately widefield EP with an 1.25" barrel.
Pentax 20mm XW gets me 51x, 70 deg. FOV.
TV Radian gets me 56x, 60 deg. FOV.
Eye relief is essentially the same (and I need the eye relief).
Radian is about $70 less.
Weight and build quality OK with me for both.
I've read some less-than-glowing reviews on the 20mm XW. Not sure what to do. I want to use an O-III and UHC with it.
Please vote: given the above, go with the Radian or the Pentax?
Thanks very much for your opinions!