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Thread: Schneider 180mm f5.6 Macro Symmar HM lens

  1. #1

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    Schneider 180mm f5.6 Macro Symmar HM lens

    I have a problem of 2 stops off with my new schneider 1800 hm lens, the shutter was tested today 100% spot on also 3 light meters all same reading, tested 4 rolls one fuji pack all show the best exposure 2 stops open, anyone know if this lens only works in digital or can I use it with film? delta 100 stock used????????

    thank you

  2. #2
    Greg Lockrey's Avatar
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    Re: Schneider 180mm f5.6 Macro Symmar HM lens

    Did you compensate for bellows draw?
    Greg Lockrey

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  3. #3

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    Re: Schneider 180mm f5.6 Macro Symmar HM lens

    6-1/2 inches of bellows

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    8x10, 5x7, 4x5, et al Leigh's Avatar
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    Thumbs down Re: Schneider 180mm f5.6 Macro Symmar HM lens

    Is the aperture scale on the shutter correct for this lens? It should show values from 5.6 to 64.

    Is it a Copal 1 shutter?

    - Leigh

  5. #5

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    Re: Schneider 180mm f5.6 Macro Symmar HM lens

    yes it shows 5.6 - 64 .....just tested at steve's camera repair in culver city ca.

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    Re: Schneider 180mm f5.6 Macro Symmar HM lens

    yes copal 1

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    8x10, 5x7, 4x5, et al Leigh's Avatar
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    Thumbs down Re: Schneider 180mm f5.6 Macro Symmar HM lens

    Quote Originally Posted by jimmygcreative View Post
    6-1/2 inches of bellows
    That value (6.5" = 165mm) is less than the flange focal length of the lens (174.4mm). How did you measure it? (Diff is only 9.4mm = ~3/8".)

    Was your subject at "infinity"?

    - Leigh

  8. #8

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    Re: Schneider 180mm f5.6 Macro Symmar HM lens

    subject was 44 inches from lens board, and 52 inches from film plane.

  9. #9
    8x10, 5x7, 4x5, et al Leigh's Avatar
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    Re: Schneider 180mm f5.6 Macro Symmar HM lens

    Quote Originally Posted by jimmygcreative View Post
    subject was 44 inches from lens board, and 52 inches from film plane.
    That's only about a 26mm extension from the infinity position, which should not require any bellows compensation.

    I'm at a loss to explain the problem.

    - Leigh

  10. #10

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    Re: Schneider 180mm f5.6 Macro Symmar HM lens

    stumped

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