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Thread: Does anyone recognize this screen?

  1. #1

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    Does anyone recognize this screen?

    I have an extra-bright Sinar 4x5 focusing screen that I've always understood to be from Bill Maxwell. Another forum member has told me that he doesn't think it's a Maxwell screen because all of Bill Maxwell's large format screens are made entirely of plastic, and this one is glass with a thin plastic secondary layer.

    Does anyone recognize this screen?

    Thanks,

    Jonathan


    Click image for larger version. 

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  2. #2
    IanG's Avatar
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    Re: Does anyone recognize this screen?

    I'd need to check but my Wista screen looks similar, it's a combo screen/fresnel with the grid lines on the cack an a thin plastic protector.

    Second thoughts after checking the Wista it's not similar, I had a Cambo camera and also a rotating Cmbo back and they used plain GG screens with a plastic fresnel overlay and they were as bright as my Wista

    Ian

  3. #3

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    Re: Does anyone recognize this screen?

    There was a European (probably Dutch or Belgian) maker with sandwiched screens that had a wax layer in between. Haven't got mine any more (a studio lamp too close to the camera killed it - apparently a common issue), but it had a similar grid pattern with marks for a Sinar Zoom holder (however, IIRC no circle at the centre position).

  4. #4

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    Re: Does anyone recognize this screen?

    Quote Originally Posted by Sevo View Post
    There was a European (probably Dutch or Belgian) maker with sandwiched screens that had a wax layer in between. Haven't got mine any more (a studio lamp too close to the camera killed it - apparently a common issue), but it had a similar grid pattern with marks for a Sinar Zoom holder (however, IIRC no circle at the centre position).
    Dutch, the Boss screen. They were camera brand specific in order to place the parrafin layer on the film plane.

  5. #5

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    Re: Does anyone recognize this screen?

    I don't think it could be a Bosscreen, as it functions properly and is nice and bright without any wax between the glass and plastic pieces.

    Can a Bosscreen be used without the paraffin layer?

  6. #6

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    Re: Does anyone recognize this screen?

    Is it true that all of Bill Maxwell's large format screens of the last twenty years were made entirely of plastic? I ask because it was on a Sinar that was purchased new in 1992.

  7. #7

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    Re: Does anyone recognize this screen?

    Quote Originally Posted by Jonathan Barlow View Post
    I don't think it could be a Bosscreen, as it functions properly and is nice and bright without any wax between the glass and plastic pieces.

    Can a Bosscreen be used without the paraffin layer?
    No, both panes would be transparent. And Bosscreens had the main glass pane to the rear - the plastics (acrylic?) one was facing the lens.

  8. #8

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    Re: Does anyone recognize this screen?

    Jonathan, we met in Aspendell several years back near bishop creek. "Hey, a guy with a real camera"
    How's it going?

  9. #9

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    Re: Does anyone recognize this screen?

    Quote Originally Posted by Jonathan Barlow View Post
    I don't think it could be a Bosscreen, as it functions properly and is nice and bright without any wax between the glass and plastic pieces.

    Can a Bosscreen be used without the paraffin layer?
    No, the parrafin is what formed the image.

  10. #10

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    Re: Does anyone recognize this screen?

    This focusing screen is glass with the grid and other markings on the back, with a slightly thinner plastic Fresnel behind it. Kind of like a Canham focusing screen, except that both pieces are plastic with a Canham screen.

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