Durst SM-45 (138S) Enlarger Lens Advice

Discussion in 'Darkroom Equipment' started by bascom49, Nov 27, 2012.

  1. bascom49

    bascom49 Member

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    I want to enlarge my 4x5 negatives to 16 x 20. I don't have a lens board that will fit my Nikor 150mm lens so I used my Nikor 135mm and two durst 240 condensors.

    The 135 just does'nt quite give me enough coverage at 16 x 20.

    Being that it does not seem that Durst makes a lens board with a 50mm thread i'm thinking about sending an extra lens board and my 150 mm Nikor to SK Grimes and let them fit my 150 lens to the board.

    But, before I go to the trouble to have my 150 fitted, is the lens I should be using ?

    I'm not above buying a new 150mm Schneider and having that fitted if the Schneider will be a batter lens in the long run

    If I'm going to have this done I want to do it with a very good lens.
     
  2. bascom49

    bascom49 Member

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    Hold the phone. As it turns out I have a Schneider Componon-S 150mm lens. (I need to check my inventory more often).

    So, any advice on which lens to use, the 150 Nikor or the 150 Schneider ?

    Either one will have to have a lens board machined.
     
  3. bascom49

    bascom49 Member

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    As it turns out I misread my manual. I should be using a 200 condenser under the 240. My Nikor 135 seems to cover well at 16 x 20.

    I'm still interested in advice as to which lens would be optimum.
     
  4. ic-racer

    ic-racer Member

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    If you can tell the three lenses apart by looking at prints then one of them is buggered up.
     
  5. joh

    joh Subscriber

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    There should be Durst lensboards with 50mm thread....I have one for my 150mm Schneider Componon.
     
  6. bascom49

    bascom49 Member

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    Joh,
    Thanks for the info. Do you have the number of the lens board ?
    Thanks,
    Charles
     
  7. joh

    joh Subscriber

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    Last edited by a moderator: Nov 28, 2012
  8. quine666

    quine666 Member

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    Beware -- the older 150mm El Nikkor actually has a 53mm thread. The LAPLA 53 does show up on the evil auction site from time to time.