Field Photography & Darkroom Calculators
Precision offline-ready tools engineered for mechanical exposure estimation, optical focal length equivalence, and temperature/push-pull chemistry compensation.
INTERACTIVE CALCULATORS
EXPOSURE TOOL-01
Sunny 16 Rule Calculator
Estimate shutter speed and aperture without a light meter.
RECOMMENDED EXPOSURE BASELINE
f/16 @ 1/400s
(f/8 @ 1/1600s · f/5.6 @ 1/3200s · f/2.8 @ 1/12500s)
OPTICS TOOL-02
Crop Factor & Equivalence
Calculate 35mm field of view and depth of field equivalence.
35MM EQUIVALENT FIELD OF VIEW
≈ 42.8 mm equivalent
Standard Human-Eye Perspective
DARKROOM TOOL-03
Push/Pull Dev Time Adjuster
Time compensation for push/pull processing and temperature drift.
ADJUSTED DEVELOPMENT TIME
08:00 min @ 20°C (68°F)
Standard continuous/intermittent agitation