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Dave Thomas | all galleries >> Thru a Pinhole >> B & J 4x5 Pinhole Camera > 6 Inch Detail
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6 Inch Detail

A 1x1 inch chunk of the original 4x5 negative scanned at 1200 pixels
per inch and downsampled to 600 x 600 pixels for this detail sample.
As a single parameter, the smaller the pinhole, the better the
resolution/focus (although the higher the equivalent f stop). As
with so many things in life, there is a second effect, Rayleigh
diffraction caused by light bending around an edge. This effect
takes over with very small holes and is the final limiting factor.

Burke and James 4x5 Press Camera ,0.018 inch (0.46 mm) pinhole,Ilford Delta 100

other sizes: small medium original auto