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  #1  
Old 02-26-2012, 12:02 PM
kim_gwan kim_gwan is offline
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Join Date: Jan 2005
Posts: 61
Default UV filter

Hi All,

pls advice me

i am looking for a good quality UV filter that also serves as a lens protector,
Hoya Super HMC seems to be the choice.

However, there are different thickness of 55mm or 72mm, what does this
thickness means?

Thank you
Ralf
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  #2  
Old 02-26-2012, 03:44 PM
happypoppeye happypoppeye is offline
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Join Date: Aug 2006
Posts: 340
Default

Ralf, the "thickness" you are asking about is the diameter of the lens you are putting it on.

The lens should specify this on it somewhere. What lens are you using? ...and there are many more than just 55 and 72. You'll also see 52, 58, 62, 72, 82, etc, etc.
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  #3  
Old 03-05-2012, 10:53 PM
johngonzo johngonzo is offline
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Join Date: Mar 2012
Posts: 2
Default

On the inside of your lens cap you will find the measurement for your lens thats the size of filter thread you will need.
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