<P>Dear Redflag,</P>
<P>Sorry to waste your time!</P>
<P>I have some question when optimizing the system.</P>
<P>Usually, Spot of Wavefront Error Variance optimizing large than Transverse Ray Aberration?</P>
<P>In Error Function Type of Automatic Design. When I choice Wavefront Error Variance for optimizing to get better performance, if I would like to control specified filed's spot size. How can I do? Could you please guide me? Thanks a lot!.</P>
<P>Dear Redflag,</P><P>Thanks for your promptly reply.</P><P>Regarding to the Wavefront balance ratio. Do you menas changing the Error Function Weight?</P>