Re: Incorrect Seidel aberration calculations in lens design codes

On Feb 23, 6:36 am, Helpful person <rrl...@xxxxxxxxx> wrote:
We must agree to differ.  Using Seidels for higher order correction
seems to me to be a strange method.  For series expansion of
aberration coefficients I would expect better results using Buchdal's
methods.

www.richardfisher.com

Actually, I rarely USE the Seidels in my actual design work. I was
only doing a comparison of ZEMAX to the much less expensive LENSFORGE
and happen to notice the Seidel discrepancies. By the way, the ZEMAX
people have already got back to me, and their Seidel documentation and
code will be fixed in the next release.

Al

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