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Thread: How to measure foot candles...? Help.

  1. #1

    Join Date
    May 2006
    Posts
    31

    How to measure foot candles...? Help.

    Hi folks...I'm trying to set up my enlarger to create enlarged negs for alt processes. In one of the texts I have about creating enlarged negatives John Rudiak mentions setting "the enlarger height so that one foot candle of light falls on the baseboard (this is equivalent to EV 1 at EI 50)."

    I'm using a Pentax Analog Spotmeter to make the light measurements and am trying to figure out how to set this up correctly...can somebody out there walk me through this? I'm not used to working in foot candles..lol. Thanks.

  2. #2
    Big Negs Rock!
    Join Date
    Mar 2000
    Location
    Pasadena
    Posts
    1,165

    Re: How to measure foot candles...? Help.

    Google foot candle and EV together and you will find some websites that have charts to do this. I've looked for a formula for the conversion, but have yet to find one.
    Mark Woods

    Large Format B&W
    Cinematography Mentor at the American Film Institute
    Past President of the Pasadena Society of Artists
    Director of Photography
    Pasadena, CA
    www.markwoods.com

  3. #3

    Join Date
    Mar 2008
    Location
    Beaverton, OR
    Posts
    650

    Re: How to measure foot candles...? Help.


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