Algodoo

Nice lenses, but I'm not sure what the point of this scene is. The exiting beam fluctuates because of Algodoo's calculation variation. Changing sim.frequency will change the amount of fluctuation. The laser beam passes thru the center of each lens, so theoretically you should see no effect. If the laser if offset but parallel to the lens axis, then it will show the focusing ability of each lens.

I wanted to make unperfect lenses, more realisitc.