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Thread: B&L Protar Flange

  1. #1

    Join Date
    Oct 2004
    Posts
    61

    B&L Protar Flange

    Hello:

    Is there a source for B&L 15/16" lens flanges?

    Or is SK Grimes the likely fabricator of one for a 5x7 f18 Protar?

    yours
    Frank Johnston

  2. #2

    Join Date
    Jul 2006
    Location
    Valley of the Sun, AZ
    Posts
    681

    Re: B&L Protar Flange

    Any machinist or machine shop, including your local friendly high school machine shop teacher, can turn and thread a flange. They will need to have your lens in hand to thread a mating flange.
    They are ill discoverers that think there is no land, when they can see nothing but sea.
    -Francis Bacon

  3. #3

    Join Date
    Oct 2004
    Posts
    61

    Re: B&L Protar Flange

    Right.

    Thank you.

  4. #4
    loujon
    Join Date
    Feb 2007
    Location
    Western, PA.
    Posts
    1,476

    Re: B&L Protar Flange

    Quote Originally Posted by FpJohn View Post
    Hello:

    Is there a source for B&L 15/16" lens flanges?

    Or is SK Grimes the likely fabricator of one for a 5x7 f18 Protar?

    yours
    Frank Johnston
    Hi Frank

    Why not try a WTB post in the FS/FT section for a flange . Could be a member here has put the cells to a B&L 5x7 Protar Series V in shutter. Leaving the flange and barrel to waste in the good old flange draw/ box .

    As mentioned your next best least costly local machinist but keep in mind this lens is rare and not real valuable so don't sink a bunch in a flange.

    lastly and connecting to my above suggestion is the things so small and nearly weightless that you can drill a small tight hole ( easier if it's a wood board) and then press fit the little guy and make images for no extra lay out.

    I do understand your wanting the correct flange though, so good luck.

  5. #5

    Join Date
    Apr 2009
    Location
    Seattle area, WA
    Posts
    910

    Re: B&L Protar Flange

    With small lenses a thick o-ring can work well along with tape for reinforcement.

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