Polarizer question

[P. J. Alling]

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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