mike wilson wrote: > P. J. Alling wrote: > > >> 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. >> > > <smug> > But an LX will still _expose_ properly.... > </smug> > Only in automatic mode. In manual you'll be mislead. > >> Cotty wrote: >> >> >>> Hi team, >>> >>> Can someone please give me a rundown on the difference between a linear >>> and a circular polarizer? If you place a linear polarizer in front of >>> your lens and rotate it, will that alter the reflections etc like a >>> circular polarizer will? >>> >>> Many thanks. >>> > > A circular polariser has a depolariser after the polarising filter. > Apart from some technical problems (as above) there will be no visible > difference to the output if you use either. The digital advantage of > being able to frig about with exposure (assuming a suitable subject) > until you get it right comes to the fore. > >
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