Large Format Darkroom Questions

Discussion in 'The Darkroom' started by JamesD, Apr 7, 2007.

  1. JamesD

    JamesD Between darkrooms

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    I want to make sure I've got a couple of points right.

    Standard lens for enlargements from a 4X5 negative is 150mm, correct?

    And, for an 8X10 enlargement from 4X5 negative with 150mm lens, distance between lens and paper will be about 12 inches (150mm X 2 = 300mm = 12"), correct?

    Umm... that's it, for now.
     
  2. Alpha

    Alpha Troll Extraordinaire

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    I can't comment on the lens size, but your lens to paper distance is simply going to be a matter of what size paper you're printing on, and focusing. And assuming you've worked with an enlarger before, that shouldn't bee too difficult to determine.
     
  3. JamesD

    JamesD Between darkrooms

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    I have worked with an enlarger before, but only in 35mm, and the negative size to print size ratio has never been quite as small as 1:2. I'm trying to determine what sizes I'm looking at for rigging an enlargement contraption until I can get my hands on a LF enlarger, especially since I'm trying to devise something I can take with me on the road. That's why I want to verify my assumptions.
     
  4. Torus34

    Torus34 No longer a newbie, moving up!

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    LF enlargers are BIG! BIG implies TALL!

    Make sure you have a sufficiently high ceiling or be prepared to focus while kneeling.
     

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