Film toolkit

Film photography tools that do the math

A free set of reference tools built for film and darkroom workflows: pick a stock, work out an exposure, compensate for reciprocity, and get on with shooting.

Database

Film stock database

ISO, formats, grain, latitude and best-use notes for 30+ colour negative, slide and black & white stocks.

Open the database → Calculator

Exposure calculator

Sunny 16, EV maths, equivalent exposure pairs and ND filter compensation in one place.

Start calculating → Calculator

Reciprocity calculator

Compensate long exposures by film family and get the corrected shutter plus aperture alternatives.

Compensate now → Calculator

Depth of field calculator

Hyperfocal distance, near/far limits and total DOF for any film format.

Calculate DOF → Calculator

Film cost calculator

Real cost per roll and per frame, including development and scanning.

Calculate cost → Calculator

Focal equivalence

Convert focal length and field of view between film formats.

Convert → Calculator

Print size & resolution

Turn scan pixels and DPI into a print size, or reverse.

Calculate → Database

Film camera dossiers

Specs, character and alternatives for 30 classic film cameras, grouped by type.

Browse cameras → Database

Camera database

Filter 30 classic film cameras by type, format, mount and price.

Filter cameras → Start here

Beginner's guide to film

From camera and film choice to metering, developing and scanning — the shortest path.

Start from zero → Compare

Film comparison tool

Pick two films and compare ISO, grain, latitude and best uses side by side.

Compare films →

More reference: Live Photo component & WordPress plugin · Film photography glossary

Sources & disclosure

Specs and reciprocity data are compiled from manufacturer data sheets and public community references for guidance only. Batches, processing and metering all change the result — verify against the manufacturer before a critical shoot. Some outbound links may be affiliate links; we may earn a commission, which never changes what we recommend.