Has anyone made a digital pinhole lens?

Discussion in 'Digital Discussion & Q&A' started by dirty1thirdee, Oct 23, 2006.

  1. dirty1thirdee

    dirty1thirdee TPF Noob!

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    I'm toying with the idea of drilling a pinhole in the center of my body cap for my D70s. I know it won't be good quality, but I want to try just because I've been doing a lot of pinhole photography with photo paper lately and it would be pretty cool to make a pinhole lens for my DSLR.

    I'm thinking the best build would be to start drilling a hole through and stop before I reach the other side, then poke a tiny hole with a needle. That way it will be the smallest hole possible, just so my images will turn out sharper. I'll probably then tape saran wrap on the outside of the cap just to keep dust off of the sensor.

    Does anyone have any suggestions for this? I'd like to see lenses and/or actual digital pinhole photos.
     
  2. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    I think you can buy something very similar...check E-bay.
     
  3. Digital Matt

    Digital Matt alter ego: Analog Matt

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    You can buy premade pinhole body caps.

    http://www.calumetphoto.com/item/PY2110.html

    They are overpriced, but at least they are precision drilled. Give it a try your way and see how it works. The worst case is that you lose a $2 body cap.
     
  4. dirty1thirdee

    dirty1thirdee TPF Noob!

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    That's cool, but the main reason I'm doing it is to have fun making it and to see results of a lens that I made. Its sort of the same thing with the pinhole camera I made last week out of an oatmeal box, it takes crystal clear photos which is very satisfying to me. I would post them but I don't have a scanner.:( But maybe if I like what I see with results I would drop $30 on one, but i seriously doubt it.

    Another way I was thinking of doing it was to cut out a hole in the middle, then take a piece of flat copper and poke a hole through that, then electrical tape it to the back of the body cap. I might try that after the first idea though, so that way I wouldn't need 2 body caps.
     
  5. mysteryscribe

    mysteryscribe TPF Noob!

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    By its nature pinhole is no lens... It is a tiny aperture only... In digital it is usually a pinhole in the body cap that fits the camera. The holes are usually a little too large from what I have seen so far. It would probably be better to get an old body cap drill a larger hole, then cover the hole with a bit of foil and a bit of tape then punch it with a needle.

    I would think that would work best...
     
  6. Johno

    Johno TPF Noob!

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    Funny you should mention this, but I actually experimented with this earlier this week. I drilled a 1cm diameter hole in the centre of my dslr's body cap. Covered the hole with aluminum foil. It works great, I had to experiment with the guage of the hole to fine tune the focussing but after a couple of tries it works pretty well. It's a neat little experiment. I've heard of people taping a uv filter over top of the cap to keep dust off the sensor but I haven't had a problem with mine. Hope it helps.
     
  7. dirty1thirdee

    dirty1thirdee TPF Noob!

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    Well, I just made a pinhole out of a piece of cardboard, electrical tape, and a needle. I'm very happy with the results, even though they are poor quality.

    [​IMG]
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    [​IMG]
    [​IMG]
    [​IMG]

    As you can see, I just coated a piece of posterboard with electrical tape and punched a tiny hole in the middle. I then taped it to my camera body. There wasn't a seal between the mount and the pinhole card, so I had to hold it down every time I took a picture. The shots were all ranging from 8-30 seconds, and most were at 800 ISO.

    Post your results from previous attempts too! It is cool to do this and actually see results from an aperture that you made. I'll make the cap and foil one later on, and then post results.
     
  8. cal_gundert05

    cal_gundert05 TPF Noob!

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    So, can you make a P&S digital camera into a pinhole camera? :confused:

    My camera (Olympus C-3030 Zoom) has full manual mode, so setting the aperture and shutter speed manually is no problem.

    I'd love if I could do this...does anyone know if it would work?
     
  9. Alex_B

    Alex_B No longer a newbie, moving up!

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    only if you break off the glass from its lens i suppose ... :(
     
  10. Alex_B

    Alex_B No longer a newbie, moving up!

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    I thought of building my own pinhole for my SLR or DSLR .... I guess I will go for the needle + metal foil first.

    but at work we also have ion beams and similar stuff. i just wonder if i could use any of those to drill better and smaller holes .... hmmmm
     
  11. ksmattfish

    ksmattfish Now 100% DC - not as cool as I once was, but still

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    Somewhere out there I wandered across a website that shows how to do it.

    The guy built a box out of black foam core, except for one panel, which was white foamcore. The pinhole is mounted so it projects onto the white panel inside the box. The point-n-shoot is placed inside the box facing the white panel, and the exposure is made by timer or remote.

    I drilled a 1/2" hole in my DSLR body cap. Made a pinhole in a piece of aluminum soda can, and taped it into the hole in the body cap. For me the only problem is that I prefer a wider angle pinhole camera. With an APS-C DSLR a body cap pinhole is somewhat telephoto. But I had fun.
     
  12. ksmattfish

    ksmattfish Now 100% DC - not as cool as I once was, but still

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