Pinhole "lenses" for pinhole camera

Description

Brass  plate size 30mm
Available hole diameter: 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm,
0.45mm, 0.5mm, 0.55mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm.
Plate thickness 0.1mm.
The holes are drilled mechanically.
The cost of shipping the first plate is
$
4.5, for each additional
$
0.01