Ray Tracing!

This program is pretty neat... I got to test out Lens Forge on my mac trying a 'relay' design for the AO bench. Expensive software is usually pretty cool. We use Zeemax to do optical design and it's very powerful (I've heard "Zeemax is reality" from many) but it's something like $5k a license. Lens Forge can read & edit Zeemax files, but it's only $500.... Don't know exactly what the difference is, but maybe I'll find out.