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Thread: Putting a copal 1 150mm f5.6 lens on a copal 3 shutter via adapters, what to expect?

  1. #1

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    Putting a copal 1 150mm f5.6 lens on a copal 3 shutter via adapters, what to expect?

    Hi all, so since a Xenotar 150mm f2.8 is way beyond my budget, it got me thinking about putting a standard 150mm f5.6 copal 1 lens into a standard copal 3 f5.6 shutter via adapters for the front and back cells.

    So will this set-up make my f5.6 lens a much faster lens?
    And what do you think I should expect, image wise?

  2. #2

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    Re: Putting a copal 1 150mm f5.6 lens on a copal 3 shutter via adapters, what to expe

    Nope, no more light.
    Buy a 150mm f3.5 Xenar in shutter, or a 150mm Heidosmat to front mount, or 58-Copal-to 58mm-filter-adapter to use two +3 close-up lenses to get a 166mm f3.7

    Also this will cost you, though.
    My bokeh tests: https://www.flickr.com/photos/470525...57634939838558



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  3. #3

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    Re: Putting a copal 1 150mm f5.6 lens on a copal 3 shutter via adapters, what to expe

    The Copal 3 only has 45mm opening.
    My Ilex #5 has 65mm opening, but only changes the f stop from 7.4 to 5.1 on a +3 close-up (333mm) lens. If used on two +3 close-up lenses you end up at f2.55 but might want to use a smaller aperture anyway.
    I paid $75 each for my adapter ring for my Ilex #5, but found to my surprise the 14" early Ektar will take 72mm filter straight on.

    How big shutter do you have room for?

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  4. #4
    ic-racer's Avatar
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    Re: Putting a copal 1 150mm f5.6 lens on a copal 3 shutter via adapters, what to expe

    Quote Originally Posted by MartyNL View Post
    Hi all, so since a Xenotar 150mm f2.8 is way beyond my budget, it got me thinking about putting a standard 150mm f5.6 copal 1 lens into a standard copal 3 f5.6 shutter via adapters for the front and back cells.

    So will this set-up make my f5.6 lens a much faster lens?
    And what do you think I should expect, image wise?
    If you want to use that method to increase speed, it is much easier to just fit a new aperture scale. Maybe one that goes to f1.4

  5. #5

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    Re: Putting a copal 1 150mm f5.6 lens on a copal 3 shutter via adapters, what to expe

    Back to the drawing board, it seems!

  6. #6

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    Re: Putting a copal 1 150mm f5.6 lens on a copal 3 shutter via adapters, what to expe

    What is the intended goal ?


    Bernice


    Quote Originally Posted by MartyNL View Post
    Hi all, so since a Xenotar 150mm f2.8 is way beyond my budget, it got me thinking about putting a standard 150mm f5.6 copal 1 lens into a standard copal 3 f5.6 shutter via adapters for the front and back cells.

    So will this set-up make my f5.6 lens a much faster lens?
    And what do you think I should expect, image wise?

  7. #7

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    Re: Putting a copal 1 150mm f5.6 lens on a copal 3 shutter via adapters, what to expe

    Quote Originally Posted by Bernice Loui View Post
    What is the intended goal ?


    Bernice
    To try and create a Xenotar 150 f2.8 but without the expense!

  8. #8

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    Re: Putting a copal 1 150mm f5.6 lens on a copal 3 shutter via adapters, what to expe

    Here is the f3.5 Xenar 165mm, almost there: https://www.ebay.com/itm/26524812608...wAAOSwGO1hBPBj

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  9. #9

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    Re: Putting a copal 1 150mm f5.6 lens on a copal 3 shutter via adapters, what to expe

    Quote Originally Posted by MartyNL View Post
    To try and create a Xenotar 150 f2.8 but without the expense!
    Fast, inexpensive, good? Which two do you want?

  10. #10

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    Re: Putting a copal 1 150mm f5.6 lens on a copal 3 shutter via adapters, what to expe

    Quote Originally Posted by Dan Fromm View Post
    Fast, inexpensive, good? Which two do you want?
    Fast and inexpensive. Good is relative.

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