Sources for pinhole sheets(Some of these companies also offer zone plates.)The US and Canada:
The Pinhole Resource Offers "12 micro-drilled pinholes in individual 1.5 in. square sheets of .001 in. grade 400 full hard stainless steel, a hard, durable and highly corrosion resistant metal. Sizes of holes measure: .0059", .0087", .0102", .0126", .0138", .0160", .0181", .0200", .0225", .0250", .0276", .0320". These sizes fit 3/4" to 17" focal lengths if used optimally. Includes an optimal chart with focal lengths."
Also has stores in the UK, Germany and Belgium. Offers pinhole plates in various sizes.
Pinholes in various sizes are drilled in .0005" ultra thin 9.5mm / 3/8" diameter, 300-series stainless steel aperture discs. Each photo pinhole comes mounted to an 18mm black-anodized Aluminum disc.
Offers custom made pinholes optimum for focal length from 15mm and up and pinhole sives.
See below, under Germany.
Pinhole Solutions
PO Box 9327 Offers laser cut pinhole lenses in stainless steel shims in four different sizes in a 1 cm disc: 0.2 mm - 0.3mm - 0.4mm - 0.5mm. Also offers silver shims for making your own pinholes; these come as 1 cm discs 5/1000 of an inch thick.
Zörk Film & Phototechnic Offers pinholes with diameters 0.2, 0.3, 0.5 mm. Also offers pinholes for use in combination with lenses. Each has a precisely circular sharp-edged aperture of 1 mm, 1.5 mm or 2 mm diameter for different depth of field exposure requirements.
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