A Canon 30D camera fitted with a pinhole body cap. The hole through the body cap is 0.3mm in diameter giving an aperture of f167. In daylight at ISO 200 and f167 exposure times are about 1 sec but it pays to experiment. To get pinhole images using this combination you need the camera on its "Manual" setting as there is no aperture to control and nothing to focus. You will have to adjust the angle of the camera to get the image you want as with such a small aperture there is nothing to see through the viewfinder. A bit of trial and error with exposure time and positioning and you will capture some great pinhole images. The discontinued 30D has an 8.2mp CMOS sensor.
Digital SLR
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