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  1. #11
    cliveh's Avatar
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    What sort of subjects are you intending to photograph with this fixed lens?

    “The contemplation of things as they are, without error or confusion, without substitution or imposture, is in itself a nobler thing than a whole harvest of invention”

    Francis Bacon

  2. #12

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    First I would get a helical and use that. If that's not practical, set for hyperfocal for your intended aperture (f/16 or smaller presumably).

  3. #13

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    Quote Originally Posted by cliveh View Post
    What sort of subjects are you intending to photograph with this fixed lens?
    Landscapes. Pretty much exclusively landscapes.
    Various Canons and Nikons. A Mamiya and a Bronica. A couple Brownies, and a Couple of Argus' (Argi?)

  4. #14

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    Quote Originally Posted by EdSawyer View Post
    First I would get a helical and use that. If that's not practical, set for hyperfocal for your intended aperture (f/16 or smaller presumably).
    I was thinking of a helical but considering that I'll be using this for landscapes and always on a tripod I don't really think its going to be necessary. At f16 hyperfocal my close focus point (start of depth of field) is somewhere around 8 meters. Stopped down farther and that will come in a bit more. I think that will probably work for the cameras intended use. If not, I can always remake the lens mount and move the lens a bit.
    Various Canons and Nikons. A Mamiya and a Bronica. A couple Brownies, and a Couple of Argus' (Argi?)

  5. #15

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    For anyone (like me) who is not of a mathematical turn of mind, there's an online thin lens equation calculator to help us out here http://hyperphysics.phy-astr.gsu.edu...pt/lenseq.html

  6. #16
    RalphLambrecht's Avatar
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    determine the depth of focus (not field)for your working aperture and add that to the flange-to-focal-plane distance for max DOF if i'm not mistaken, which happens often.
    Regards

    Ralph W. Lambrecht
    www.darkroomagic.comrorrlambrec@ymail.com[/URL]
    www.waybeyondmonochrome.com

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