Linos Photonics, the company that owns Rodenstock, has a free software programme on its site called PreDesigner. The programme allows one to play with lens variables and see their impact. I've just played with it a little, but it seems to be quite a cool little programme, available in German or English, PC only: http://www.winlens.d...edes_intro.html There is an on-line manual that explains in detail what the programme does and how it works.
Design Your Own Lens
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