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  1. #1
    Murray@uptowngallery's Avatar
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    single vs double condenser

    I see some enlargers configured with one or two condenser lenses.

    I thought I read somewhere a second condenser shortens the height of the enlarger.

    What is the difference in light uniformity between a single and double condenser. If spacing and height are not a concern, can a single condenser suffice?

    Thanks
    Murray

  2. #2

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    I have no idea, but mine(Fuji FD690 which covers from 35mm to 6x9cm) has three. I heard the reason the 3rd condenser was added to this model was to control and even out the light for use of a 50mm lens. All the previous models in this series (Fuji 690 series) had two condensers...

  3. #3

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    Quote Originally Posted by Murray@uptowngallery View Post
    If spacing and height are not a concern, can a single
    condenser suffice? Thanks
    The combined refractive power of a double condenser
    is great. Usual focal lengths of the pair are in the inches.
    I wonder though of lens abberations using a single lens
    condenser. Although a well corrected achromat as
    such is not the objective of a double condenser
    the pair may perform better. Dan

  4. #4
    Murray@uptowngallery's Avatar
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    I forgot about aberration correction thru symmetry. Thanks
    Murray



 

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