[ATM] Wynne Newtonians

[Nathan Towne]

Not really.  I did notice that and looked around for a better fit, but 
didn't find one.  It may simply be that the optimization by chance found 
a local minimum in the 4.0 case that is poorer than the 3.5 case.  That 
seems to happen.  It may be that more effort would yield a better 
design.  If there is an optical reason for it, I don't have a clue.

Richard F.L.R. Snashall wrote:
> Nathan Towne wrote:
>>
>> The all-bk7 versions are at these links:
>>
>> http://www.atmlist.net/contrib/towne56-at-frontiernet-dot-net/Wynne8F4.0bk7.len 
>>
>> http://www.atmlist.net/contrib/towne56-at-frontiernet-dot-net/Wynne8F3.5bk7.len 
>>
> Looking at these, the Strehl for the f/3.5 version is better (at the 
> field edge) than the
> f/4.0 version.  Have you surmised a reason for this?