[rollei_list] Re: Rolleiflex Focusing

http://www.urmonas.net/manuals/rollei-prac-acc-54/rollei-prac-acc-54.html


Eric Goldstein

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On 6/19/07, Richard Knoppow <dickburk@xxxxxxxxxxxxx> wrote:


   The scale should be exact at infinity. Errors may show up
a close distances. Evidently there was more than one scale
available to compensate for the slight variation in focal
length of production lenses. I find the scale of one of my
Rolleis appears to be accurate for close distances when
measured to the film plane and another that appears to be
calibrated to the entrance pupil (about the front panel of
the camera). Actually, distance scales should be calibrated
to the entrance pupil but many use the film plane.

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Richard Knoppow
Los Angeles, CA, USA

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