I have just one Baader Hyperion that I use (occasionally) on my PF80. It focuses to infinity fine. It is not however, equivalent to a Pentax XL or XW EP as it lacks the field flatness, a wee bit of the sharpness, the infinitely adjustable eyecup, and some of the contrast.
It is a good value for the budget conscious however.
Good day to all.
I must be one of the luckiest and unluckiest individuals
on this thread.
Luckiest:- In so far as my Hyperion eyepiece 21mm and
17mm (which I use on both my PF80 and PF65.)
are so delightful to use. I use them all the time.
Unluckiest:- In so far that my PENTAX EF12 and
SMC 8-24mm zoom eyepieces I very rarely
use.
Could this be 'fate ' that my Hyperions were at the top
end of quality 'batch' in manufacture. Whilst the Pentax
just passed inspection ?
Can a medium vest be advertised as a short mans
long vest or a tall mans short vest?
I use Olympus microscopes daily with top end objectives.
I need 'definition' crisp and clear. I know what I'm looking
through and at.
What I can't recognise are some of adverse comments
made against the Hyperion fixed eyepieces!! The Hyperion
zoom is a different matter. It would not reach focus on any
of my scopes.
Kindest regards,
young Ian.