Topic: The cutest pinhole camera

[Francois]

Now if you don't think the following link is cool, you never had Lego when you were a kid!
http://petapixel.com/2014/10/23/single-lego-brick-working-pinhole-camera-spits-teeny-prints/

[John Robison]

That's neat. Wonder what the smallest pin hole diameter one could use, maybe .1 mm (.004 inch)? Just for kicks and giggles I built a 1 inch sq. drop bed camera that takes 13 X 13 mm images but uses a 25mm f3.5 lens from a Minolta 16mm camera. The lens has a slot for the aperture blades and I use brass shim stock with drilled holes for aperture control. Since there is no shutter I can only use paper because the only control I have over shutter speed is taking the lens cap off.

[AJShepherd]

You could make a slightly larger format version with Duplo, I guess.

Making a pinhole camera with meccano isn't really on though, hard to make that light tight!

[Francois]

Unless you make a felt bag and hang it on the meccano frame.