My guess is that it was the aspheric part that made the difference. This changes the way the lenses are "cut" and reduces the change in thickness between different parts of the lens. That's what reduces the distortion.
Have you tried other brands/indexes of aspheric lenses? I found that there is less distortion in recent lenses than there was, say, 15 years ago. I have a strong negative prescription (-6.50), and found little difference in distortion between a small 1.57 lens from Zenni, and a smaller CR-39 lens. (CR-39 is supposed to have the best optical properties, closest to glass.) --~--~---------~--~----~------------~-------~--~----~ Check us out at the oft-updated http://www.glassyeyes.com! You received this message because you are subscribed to the Google Groups "GlassyEyes" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/glassyeyes?hl=en -~----------~----~----~----~------~----~------~--~---
