I recently got into a "discussion" with my photo professor about flat field lens es, specifically the G Clarons. I have a 150 Claron, and when I researched flat field lenses before I bought it the only potential problem I found with the syme trical design of these lenses was that there was a sharp drop off of the area of sharpest focus from the plane of focus. Presumably, this is why Schneider recom mends that you should stop down to f22 or smaller if you use the lens for shooti ng anything beyond its optimum range. When I tried to explain this to my prof. h e said he had no idea what I was talking about and implied that I had no idea wh at I was talking about either. I no longer have the info I got about this issue and can't seem to find it on the web. If anyone knows where I can find it or can tell me about it, it would be appreciated. It was not fun being made to look li ke a fool in front of the class and I would like to go to next class (4/16/01)ar med with some data. Thanks.
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