Pinhole Lens for Canon EF mount

by chriswoebken, published

Pinhole Lens for Canon EF mount by chriswoebken Jan 19, 2010

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It's a wide angle pinhole lens designed for Canon EF mount.


Print it in black. You can also dip the Rapidprototype in black shoe dye.
The only additional thing you need is to a piece of aluminium foil pierced with a pinhole. Paint the aluminum black with a marker for best results. I am curious about your results!

Made by www.kenichiokada.com and www.chriswoebken.com

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I have just printed this on a Form1 with clear resin. I need to paint it before testing :)
The fit on the camera is good but there is very little to grip onto for turning it.
The hole is huge for pinhole photography - this will give very blurred images (instead of slightly burred images!)
I intend to add a small piece of tape or tin plate, with a 0.2mm hole and see what happens.

Very nice, thanks for sharing. Quite a different photography style. I posted a picture I took with it here: http://fav.me/d5d7gwhhttp://fav.me/d5d7gwh

just discovered a better way to print this. if you modify skeinforge to print from the inside out rather than outside in the slope of the cap will almost print perfectly on a makerbot with no support. there is a checkbox somewhere in skeinforge that controls this. i am also printing with a .35 nozzle so that could be a problem as well.

took this photo with it. its super fun to put a high power flash on the camera, brings exposure times WAY down

if you stack on an extension tube or three you can change the focal length of the "lens" works really well. with the cap and a 13mm and a 21mm tube i can get what looks like the euivlant of a 24mm (cap only), 35mm (cap and 13mm tube), 50mm (cap and 21mm) and about an 85mm (13+21 and the cap) also toss a flash on the camera and kick it up to full power with the wide angle lens flipped down on it. you can reduce exposure times down to 1/200th of a second at 3200 iso

how did you get this to print with the shallow slope of the front of the cap? i had serious troubles on that part. mine works but looks pretty scruffy

I'd love to see the CAD file, too, please :)

wow, this is great! With which software did you create the model? Can you upload the CAD files?

I demand sample photos!


it's a gallery of images taken with this pinhole "lens"

I'm not a photography mag but I kinda miss the point - the pic's are bury and out of focus - isn't the whole point of "very small entry hole" to have "everything in focus" or to use the "fancy" term - to have huge dof?

Also, when I am testing new pinhole "equipment" I like to try to have things that range the entire dof, so that i can see exactly where the focal point lies, because it will be different with each pin pricked surface. Often, you just have to cope with a really short depth, but you can make it work for you. Most of my units have approx 4-8min exposure time

Try with much longer exposure time.

My guess would be that the pinhole itself is not small enough. Try something much smaller or a sturdier metal than foil. Most common pinhole cameras are made using aluminum from a soda can or the like. Otherwise, very neat!