| Houdini |
| (professor emeritus) |
| 07/03/09 06:19 AM |
|
Re: How Good a Secondary is needed?
|
Quote:
Agree - without posting up a bunch of supporting ZEMAX analysis and/or quoting Suiter, I can tell you with certainty that diagonal curvature more than 1/10 wave P-V is enough to generate astigmatism at high powers.
Please do post a couple of ZEMAX analyses, I don't accept your certainty without proof
.Robert