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Old 06-10-2019, 07:18 AM
Jethro777 (Jethro)
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Televue Dioptrix

I have some very annoying astigmatism in my eyes (each eye gives me a slightly different shape) so I was considering the televue dioptrix.

Has anyone had them used them? (I need the .25 weak one).
How did they go?
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Old 06-10-2019, 11:14 AM
rrussell1962
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I use a Dioptrx to deal with the 1.25 astigmatism in my observing eye. Very convenient and more pleasant than observing with glasses or contacts. At 0.25 your astigmatism is pretty mild and would only be noticeable at large exit pupils I would think. The Televue website has a handy chart on how different degrees of astigmatism will be noticeable at different exit pupils. Also bear in mind that the Dioptrx does eat into the available eye relief - which is why I ended up selling my Ethos eyepieces and moving to the Delos.
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Old 06-10-2019, 05:07 PM
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Rainmaker (Matt)
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I use a 0.75 DioptRx with only one eyepiece, Nagler 22T4, I would use with the Nagler 26T5 as well but due to its shorter eye relief it isn't ideal.
They are the only two eyepieces that give and exit pupil that show my astig.
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Old 06-10-2019, 06:42 PM
Jethro777 (Jethro)
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Well, here is what I see when I look at a star. (No scope - just focal corrected)
People say “it’s only .25” - but it seems awful to me.
It may also be “complex astigmatism” where I see multiple angles.
Optometrists seem to really struggle with diagnosing this correctly, they use the “dots in a circle” and give you two options for which is clearer.
Pain in the neck. I thought all my scopes sucked. ��
What does what you see without the Dioptrix look like, and with?
I am guessing also that maybe some with astigmatism see just one spike?
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Last edited by Jethro777; 06-10-2019 at 07:20 PM.
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