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Thread: Bausch & Lomb 506mm 5.6 / lens coverage for 16x20

  1. #51

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    Re: Bausch & Lomb 506mm 5.6 / lens coverage for 16x20

    Just test it like everyone is saying. Use a cardboard box, and a translucent bag as a DIY focus screen. Find a friend to sit at the distance you think you will likely shoot from. You can see exactly what the lens will do instead of guessing. It's really simple and in 5 minutes you will have definitive proof of if it works for your application or not.

  2. #52
    Tin Can's Avatar
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    Dec 2011
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    Re: Bausch & Lomb 506mm 5.6 / lens coverage for 16x20

    Best answer!

    Quote Originally Posted by blue4130 View Post
    Just test it like everyone is saying. Use a cardboard box, and a translucent bag as a DIY focus screen. Find a friend to sit at the distance you think you will likely shoot from. You can see exactly what the lens will do instead of guessing. It's really simple and in 5 minutes you will have definitive proof of if it works for your application or not.
    sin eater

  3. #53
    Corran's Avatar
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    Apr 2011
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    Re: Bausch & Lomb 506mm 5.6 / lens coverage for 16x20

    Quote Originally Posted by maxi0909 View Post
    But I dont talk about image circle anymore, I just wanna talk about DOF

    I wrote to Kurt Moser, whos a german too and he told me that he takes portraits with projection lenses that have apertures like f4

    unbelievable, but he says it works well
    It's good that you have reached out to a practitioner to get practical real-life information.

    I'm not a fan of his portraits. I like short DOF, but his are so extreme that I find they become grotesque caricatures. Just my opinion of the effect of DOF on the image. You mentioned earlier you wanted the full face in focus, so you might refer again to my post #45 regarding that.
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    All comments and thoughtful critique welcome

  4. #54

    Join Date
    Mar 2019
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    19

    Re: Bausch & Lomb 506mm 5.6 / lens coverage for 16x20

    Quote Originally Posted by Corran View Post
    It's good that you have reached out to a practitioner to get practical real-life information.

    I'm not a fan of his portraits. I like short DOF, but his are so extreme that I find they become grotesque caricatures. Just my opinion of the effect of DOF on the image. You mentioned earlier you wanted the full face in focus, so you might refer again to my post #45 regarding that.
    Giles Clement, a guy who also built a 16x20 camera uses a 500mm f/4.5 1913 Goerz Dogmar for 1:1 portraits. He said to me that he uses f6.3 and i really like his kind of DOF (not that extreme even though its 6.3). I really love the look that lens produces

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