Rodagon D 75 for macro?

Discussion in 'Darkroom Developing and Printing' started by Xosni, Jul 21, 2003.

  1. Xosni

    Xosni Guest

    Have anybody tried using this lens mounted on on a camera for 3-d macro work?

    thanks
    email prefered
     
    Xosni, Jul 21, 2003
    #1
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  2. Xosni

    Bob Salomon Guest

    There are three Apr Rodagon D lenses.

    75mm 4.0
    75mm 4.5
    120mm. 4.0

    All are current. Which of the 75mm ones are you asking about? Both are
    duplicating lenses but are corrected for different ratios.
     
    Bob Salomon, Jul 21, 2003
    #2
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  3. Xosni

    Xosni Guest

    Thanks for replying Bob.

    I have two options: 75mm 4 and the 75 4.5. I know that the 4 is made
    for 1:1 while the 4.5 for 1: 2. I prefer the 4.5 since I can use it
    either reversed or "straight" for different ratios, while the 4.0 will
    be the same either way, right?

    How would these lenses perform for 3-d subject? Rodenstock recommend
    an aperture of 5.6 but I'll be using f16-f22 most of the cases.

    The reason I'm considering these lenses for Pentax 67 body is that I
    was never impressed by Pentax optics (Pentax users will not like
    that!). I know 75mm is very differnt from 100 or 135mm in terms of
    perspective, but how how would the Rodagon-d compare to the Pentax
    macro lens in terms of sharpness (@ F16), color rendition (Rodagon is
    an apo), and contrast (coating?)?

    thanks
    Xosni
     
    Xosni, Jul 21, 2003
    #3
  4. I haven't used a Rodagon specifically but I have used
    Compnons for macro work, they work very well so the Rodagon
    should also. I am not sure if by 3D you mean photographing
    three dimensional objects or doing stereo photography, if
    the former the lens works just fine. Macro object distances
    are just about in the range enlarging lenses are optimized
    for.
     
    Richard Knoppow, Jul 22, 2003
    #4
  5. Xosni

    Bob Salomon Guest

    Richard,

    The Apo Rodagon D is NOT an enlarging lens.
     
    Bob Salomon, Jul 22, 2003
    #5
  6. Xosni

    Bob Salomon Guest

    They are fully coated on all glass to air surfaces.
     
    Bob Salomon, Jul 22, 2003
    #6
  7. Xosni

    Bob Salomon Guest

    No.

    There are two 75mm Apo Rodagon D lenses. A 4.0 corrected for 1:1 and a
    4.5 corrected for 1:2.

    Since they are the shortest focal length they are available in two
    different corrections.
     
    Bob Salomon, Jul 23, 2003
    #7
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