Difference between red 25 and 25A filters?

Tony-S

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• Jul 11, 2010

• #1

I came across a red 25 filter and it is noticeably darker than my 25A filter. I couldn't find a ref in my books that discussed the differences, so I'm hoping someone here might know. I'd say it's a half stop darker.

 

Lee L

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• Jul 11, 2010

• #2

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OP

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Tony-S

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• Jul 15, 2010

• #3

OK, thanks (and thanks to those who PM'd me). I'll give each filter a try on the same roll/scene and see what differences they have.