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  1. #11
    BetterSense's Avatar
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    I would buy a laser-cut one if it wasn't so expensive.

    I still think a chemically-etched pinhole would be the best, because then the edges would taper down to a perfect edge. I'm trying to figure out how I can make one at work.

    I kept noticing when I was scanning my pinholes to measure them, that there was often burrs or other jagged edges on them. Maybe I'll make a bunch of pinholes in a piece of can, then look at them in the microscope at work, and pick out the best-looking one.
    f/22 and be there.

  2. #12
    bobwysiwyg's Avatar
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    I've never owned/used a pinhole cam. but it does interest me. I follow the related threads quite a bit. What do you experienced folks think of this?

    http://cgi.ebay.com/Skink-Laser-cut-...03179004r24511
    WYSIWYG - At least that's my goal.

    Portfolio-http://apug.org/forums/portfolios.php?u=25518

  3. #13
    BetterSense's Avatar
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    I think they look really cool, and I would like to have precision pinholes, but at $30, it's too ironic for me. Plus, I have seen people selling complete assortments of laser-cut pinholes for that much money, and not just one size.
    f/22 and be there.

  4. #14
    CuS
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    I know what you mean - jagged edging

    Quote Originally Posted by BetterSense View Post
    I kept noticing when I was scanning my pinholes to measure them, that there was often burrs or other jagged edges on them.

    I have th same issue - mine are often very jagged and burred under scanning. An idea mught be to mount a sewing machine needle in a drill press and drill the pinhole at high speed - this might plasticize the metal at the edges of the hole and reduce burring.

    Etching would be teh best though - the lands would be sloped.

  5. #15

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    Quote Originally Posted by bobwysiwyg View Post
    I've never owned/used a pinhole cam. but it does interest me. I follow the related threads quite a bit. What do you experienced folks think of this?

    http://cgi.ebay.com/Skink-Laser-cut-...03179004r24511
    They're a couple bucks cheaper here:
    http://www.lenoxlaser.com/pinholepho...ed_lenses.html

    If I read the forms correctly, shipping is about half the eBay item's.

    (Haven't used Lenox, just bookmarked the site.)

  6. #16
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    Hmm - those Skink "pancakes" are quite elegant. A Canon FD model would look nice on my A-1, wish they made one for Bronica SQ family! But by the time you get a pinhole, you're talking $60 with shipping. The Lenox looks like a less expensive way to find out how much better a laser drilled hole is, and I like the fact that they have closer size intervals. From 0.7 to 0.8 mm isn't such a big jump, but from 0.2 to 0.3 certainly is.

    Enh, maybe before next April I'll get something to try.

    Thanks for the links.

    DaveT
    Last edited by DWThomas; 06-26-2009 at 10:44 PM. Click to view previous post history.

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