Televue Dioptrix

[samdoshi]

Does anyone here use Televue Dioptrix correction lenses? Do you find they make a big difference?

I've got -1.00 astigmatism in right eye (-1.50 in my left), and I'm wondering if sticking to eyepieces that accept a Dioptrix might be a good idea? (Rather annoyingly that seems to be an expensive set to choose from...)

[Ben Ritchie]

I have similar astigmatism, and, yes, I found the Dioptrix lenses do work well - but as you've noticed it ends up as a very expensive system, and fiddly if you're observing with other people who won't want the correction.

[samdoshi]

Are they screw on or push on?