Large Format Pinholes

Description

An innovative line of Large Format pinhole lenses is now available in standard Copal 0 and 1 shutter thread connections.

Our top-quality laser drilled pinhole lenses are mounted in a black-anodized aluminum mount.

Pinholes offer a unique perspective for your photographic endeavors, providing infinite depth-of-field, impressive image clarity, and opportunities to experiment with long exposure times.

These mounts are laser-marked with text indicating the f/stop, pinhole size, and optimum focal length.

Formula for Calculating f-stop

f = fl / d

f = aperture

fl = focal length (distance from pinhole to film)

d = pinhole diameter

Suggested Sizes

Based on Average Camera Dimensions

35mm Camera: 300 Micron Pinhole

4×5″ Camera: 450 Micron Pinhole

Large Format Camera: 900 Micron Pinhole

Wide Angle

Focal Length: 35mm = 250 Microns

Focal Length: 3×4″ = 400 Microns

Sizing Chart for Common Focal Lengths

Focal Length	Suggested Part Number	f-Stop
10 mm	COPAL-0-150	f 67
15 mm	COPAL-0-175	f 90
25 mm	COPAL-0-225	f 110
30 mm	COPAL-0-250	f 120
40 mm	COPAL-0-275	f 145
50 mm	COPAL-0-300	f 167
75 mm	COPAL-0-400	f 190
100 mm	COPAL-0-450	f 222
200 mm	COPAL-0-650	f 310
300 mm	COPAL-0-800	f 375
500 mm	COPAL-0-1000	f 500