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Thread: How to fabricate a finder mask?

  1. #1

    Join Date
    Jul 2006
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    Collinsville, CT USA
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    How to fabricate a finder mask?

    On top of my P.90/2 Stenope pinhole camera I have mounted a FOTOMAN finder. The mask that came with it is metal and covers way more than the coverage of the panoramic pinhole camera. Metal mask is .011 inches (.29mm) thick and painted black.

    Advice on how to fabricate another metal mask to match the coverage of the pinhole's panoramic image needed. Figuring out the size of the rectangular opening in it is easy. Fabricating the metal mask, I'm not sure where to begin.... aluminum, steel, brass, or ? .29mm shim stock? How to cut out the shape and the opening?

    thanks
    Attached Thumbnails Attached Thumbnails finder2.jpg   finder1.jpg  

  2. #2

    Join Date
    Dec 2018
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    344

    Re: How to fabricate a finder mask?

    How about thin black plastic and an X-Acto knife?

  3. #3
    Tracy Storer's Avatar
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    Nov 2001
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    Oakland CA
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    Re: How to fabricate a finder mask?

    Quote Originally Posted by Dugan View Post
    How about thin black plastic and an X-Acto knife?
    +1, Thin black Delrin would be a great choice.
    Tracy Storer
    Mammoth Camera Company tm
    www.mammothcamera.com

  4. #4

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    Re: How to fabricate a finder mask?

    Also consider thin clear plastics, and mask off with red or silver stripping tape... This way you can "adjust" the mask opening by re-taping until correct...

    Steve K

  5. #5

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    Re: How to fabricate a finder mask?

    Quote Originally Posted by LabRat View Post
    Also consider thin clear plastics, and mask off with red or silver stripping tape... This way you can "adjust" the mask opening by re-taping until correct...

    Steve K
    Made a mask from a spare 4x5 dark slide and found out that it was too thick to fit inside the finder. Looked around for a stiff sheet of clear thin plastic and found one. Cut to size it also was too thick to fit inside the finder. Then while loading an 8x10 sheet of film into a holder realized that the answer was right there in my hand. Ended up cutting the mask from an undeveloped sheet of 8x10 film. Cutting the rectangular hole took a few tries since it measured only 8mm x 5.3mm. Final mask works great.
    thanks,
    Greg

  6. #6

    Join Date
    Aug 2004
    Location
    NYC
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    351

    Re: How to fabricate a finder mask?

    soda can aluminum!

  7. #7

    Re: How to fabricate a finder mask?

    I have made bunch of masks for a Horseman 6x12 finder on a 3d printer. Not metal, but work well and accurate.

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