Hi, allow me using English to reply to your enquiry as it's not convenient for me to type Chinese. Ym:{Mm=ud Y.9~Bo<<r Regarding your question, I would suggest you defining some parameters first before air it out; \KN dZC?V2 u6p5:oJj, 1. What wavelength(s) are you operating? +]_nbWL(% 2. How many components could you use? (any limitation?) >"bnpYSe 3. Do you prefer using off-shelf lens to customised lens? Or do you have budget for customised lens? -HN%B?}. x %GS\1 Q% There are some examples in ZEMAX 0&Qsk!-B }<.7 xz|V Under Program Files\ZEMAX\Samples\Sequential\Objectives, you should be able to find some examples. I believe that with properly selection of variables you should be able to achieve an optical solution for the performance target you specified. 2pjW,I!` _l<| 1nH hope this helps :)