Quote Originally Posted by David Lyga View Post
Are there any examples of plastic being optically superior to glass? Have there been any serious attempts (marketed or not) to create better optics using plastic? What are the inherent obstacles towards achieving this? - David Lyga
Well yes. Holga now makes their lens in Nikon mount. For $40 it's a great lens. One of the problems with plastic is it has a lot of expansion and contraction with temperature changes.

Kent in SD