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  1. #1
    eric's Avatar
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    Getting density without a densitometer?

    I guess densitometers are out of my league in prices. Wow, didn't know they cost so much. Is there a different method? Can I use my spotmeter somehow?

  2. #2
    Lee L's Avatar
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    Phil Davis published plans and methods for using 1 degree spotmeters as densitometers in his Beyond the Zone System books.

    Lee

  3. #3
    Dan Henderson's Avatar
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    Eric: check out Phil Davis' book, "Beyond the Zone System." He shows how to use a spotmeter as a densitometer.

    By the way, the EL Nikkor 105 is working great for me.
    Dan


    web site: Dan Henderson, Photographer.com

    blog: https://danhendersonphotographer.wordpress.com/

    I am not anti-digital. I am pro-film.

  4. #4

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    My densitometer cost about $50 Canadian. It's almost older then I am but so is most of my darkroom stuff -)

  5. #5
    eric's Avatar
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    Thanks guys! I just happened to borrow that book from the library a few weeks ago. Didn't like it much, it was a very old copy (70's I think). Just kinda flipped through it.
    I'll take it out again and look for the spotmeter. I didn't notice it then cause I guess I wasn't looking for it.
    FireP. -- glad the lens is working!

  6. #6

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    If you have a .10, .30 and .60 ND set of filters, you can combine them in various ways and directly compare the density over a light box.

    Just cut identical sized holes in a pair opaque cards and lay one over the NDs and one over the area you want to measure and compare.

    It should get you in the ballpark...

  7. #7
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    You can also use your scanner if you have one. Many scanner driver software packages have a densitometer function built in.

  8. #8
    eric's Avatar
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    Quote Originally Posted by TheFlyingCamera View Post
    You can also use your scanner if you have one. Many scanner driver software packages have a densitometer function built in.
    hmmm, interesting. I'll look into that. I run GIMP on a Mac. I'll try googling some GIMP +densitometer

  9. #9
    TheFlyingCamera's Avatar
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    Or look in the help files with GIMP (assuming it has any). I'm running SilverFast AI which came with my scanner, and I can use a densitometer in the scanner driver before I do my final scan, and of course, I can also do it in photoshop.

  10. #10

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    Quote Originally Posted by eric View Post
    I guess densitometers are out of my league in prices. Wow, didn't know they cost so much. Is there a different method? Can I use my spotmeter somehow?
    Dear Eric,

    Why do you need a densitometer? What are you planning to do with it? Consider that densitometers were all but unknown in amateur use until recently, and completely unknown in the early days of photography. Can't you use the time-honoured method of just making pictures, instead? Do not look for more precision than is needed, or meaningful...

    Not being combative, just wondering.

    Cheers,

    Roger
    Free Photography Information on My Website
    http://www.rogerandfrances.com

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