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Thread: still working on smoke

  1. #1

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    wm c boyer

    still working on smoke

    I painted those DIY snoots, I knew it and placed 2 of them either side and aimed at the smoke.
    Used my 180 macro at a distance of 5' giving a DOF of about 3" shooting at f/18, 1/8sec/ ISO 400.

    If I want a 12 inch field of view with more DOF...what mm lens might I use? I have 17mm to 300mm.

    still working on smoke

  2. #2
    Stagecoach's Avatar
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    Grahame

    Re: still working on smoke

    Quote Originally Posted by chauncey View Post
    If I want a 12 inch field of view with more DOF...what mm lens might I use? I have 17mm to 300mm.
    Chauncey, practically if you are going to to retain the same framing (lets say 12" horizontal) the DoF is going to be the same whatever FL lens you use.

    In theory, using the calculators linked below, a shorter FL will give you a slightly greater DoF.

    http://www.tawbaware.com/maxlyons/calc.htm

    Use the 'Dimensional Field of View Calculator' first for say two FLs to get the same 'horizontal' FOV and then feed those FL and Subject Distance figures into the 'Depth of Field Calculator' and you will see.

  3. #3

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    wm c boyer

    Re: still working on smoke

    That's what my research determined as well Grahame...was holding out hope that I was wrong.

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