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Forums > Back > Hoya CPL filters
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#4
09-03-2010, 01:34 PM
[quote name='Brightcolours' timestamp='1283516988' post='2454']

The pol. film is sandwiched between glass, as far as I know (with all brands), you can not touch it.

[/quote]



Actually a circular polarizer comprises two thin plates glued together: a linear polarizer and a quarter-wave plate (whose optic axis is aligned at 45 deg to that of the linear polarizer).
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Messages In This Thread
Hoya CPL filters - by miro - 09-03-2010, 10:59 AM
Hoya CPL filters - by joachim - 09-03-2010, 11:14 AM
Hoya CPL filters - by Brightcolours - 09-03-2010, 12:29 PM
Hoya CPL filters - by Guest - 09-03-2010, 01:34 PM
Hoya CPL filters - by Brightcolours - 09-03-2010, 02:16 PM
Hoya CPL filters - by miro - 09-03-2010, 03:56 PM
Hoya CPL filters - by popo - 09-03-2010, 04:28 PM
Hoya CPL filters - by popo - 09-03-2010, 04:34 PM
Hoya CPL filters - by Brightcolours - 09-03-2010, 04:51 PM
Hoya CPL filters - by popo - 09-03-2010, 06:57 PM
Hoya CPL filters - by wim - 09-03-2010, 07:44 PM
Hoya CPL filters - by miro - 09-06-2010, 01:09 PM

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