Camera setup

Focal Length
?
Format
?
Look
?
Film reciprocity
?
Metered time (s)
?

Optimal diameter: mm

f-number:

Angle: °

Base exposure: stops

Corrected time:

Custom Pinhole

Diameter
?

Optimal focal for this pinhole: mm

f-number at current focal:

Base exposure at current focal: stops

Corrected time:

The right panel keeps your current focal length from the left panel and applies your own pinhole diameter to it.

Reciprocity curve used

Select a film and enter a metered time to see the correction curve used.