Well obviously it can't be circular it's not round... Cotty wrote: > On 10/7/07, P. J. Alling, discombobulated, unleashed: > > >> The only problem with a linear polarizer is if the functioning of your >> camera depends on a semi-silvered mirror, (most do these days). If the >> meter is behind it, (Pentax LX OM2/4 etc.), you'll get inaccurate meter >> readings. If your autofocus sensors are behind it you'll get inaccurate >> or no auto focusing. >> > > Interesting. I was thinking about one of these: > > <http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=330145969959> > > 4 inch by 4 inch for a 3 chip CCD TV camera... > >
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