Results 1 to 2 of 2

Thread: 120mm lens comparison

  1. #1

    120mm lens comparison

    I`m looking for a 4x5lens that can give me the most depth of field in "Makro" si tuations. At the same time I need a great shapness quality so I can make large p rints (55x55inches). For example these "Makro" situations have the following dim entions: 35-55cm wide by 30-50cm deep. The depth range that I`ve just mentionned is the minimum D.O.F needed. The height might vary from 15 to 40cm. Hope this i sn`t too confusing.

  2. #2

    Join Date
    May 1998

    120mm lens comparison

    You have relaxed your conditions since your last question on this topic. You appear to want a magnification range of 0.1 to 0.3. Plugging the numbers into the standard formulae: with c=0.1mm, aperture f/45, f=120, m=0.1 gives a DoF of 150cm. But m=0.3 gives a DoF of only 23cm.

    This is independent of manufacturer, of course. And for your print size, you might not be satisfied with c=0.1mm (in other words, you might want a sharper print).

    Have a nice day.

Similar Threads

  1. Lens Comparison
    By Bob Phipps in forum Lenses & Lens Accessories
    Replies: 5
    Last Post: 4-Nov-2005, 17:11
  2. info on 120mm Aerogon lens needed
    By Gregory Kriss in forum Cameras & Camera Accessories
    Replies: 0
    Last Post: 21-Feb-2005, 13:09
  3. Lens Comparison
    By Jeff Morfit in forum Lenses & Lens Accessories
    Replies: 10
    Last Post: 23-Dec-2004, 23:33
  4. 120mm Makro-Symmar lens, information needed
    By Robert Ley in forum Lenses & Lens Accessories
    Replies: 4
    Last Post: 1-May-2004, 02:33
  5. Lens performace comparison Nikkor 210 W vs. Symmar-S
    By Tom Reymolds in forum Lenses & Lens Accessories
    Replies: 2
    Last Post: 8-Dec-2000, 19:31


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts