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  1. #1

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    Sep 2007
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    Difference between US aperture stops and regular aperture stops

    I was recently told by the person repairing my Kodak #8 Premo plate camera that the aperture stops are US format and the crossover with regular f-stops is f16.Can anyone explain what the difference is between US stops and f stops?

    Thanks

    Doug

  2. #2
    Steve Smith's Avatar
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    If I remember correctly:

    US - 'Normal'

    16 - 16
    8 - 11
    4 - 8
    2 - 5.6
    1 - 4

    I have a Wray enlarging lens with the 1, 2, 4, 8, 16 markings.

    Steve.
    "People who say things won't work are a dime a dozen. People who figure out how to make things work are worth a fortune" - Dave Rat.

  3. #3

    Join Date
    Sep 2007
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    Difference betweenUS aperture stops and regular aperture stops

    Thanks for the information, Steve.It will help a lot

    Doug



 

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