Tools
Film photography tools
66 free calculators and helpers for shooting, developing, printing and scanning film — organised by what you are doing.
Exposure & Metering
Sunny 16 Exposure
Shutter and aperture from lighting and ISO.
Exposure Value
EV from aperture, shutter, ISO.
Equivalent Exposure
Every shutter and aperture that matches.
Metering Compensation
Fix snow, beach and backlit scenes.
Zone System
Place a reading on a zone, get exposure.
Reciprocity
Corrected times for long exposures.
ND Long Exposure
Exposure time with an ND filter.
Bracketing
A bracketed set of exposures.
Filter Factor
Filter exposure compensation.
Stacked Filters
Combine multiple filter factors.
Flash GN
Guide number to aperture/distance.
Handheld Shutter
Slowest shutter you can hand-hold.
Freeze Motion
Shutter to freeze a moving subject.
Astro Exposure
Longest shutter before stars trail.
Star Trail Length
How long trails will streak on film.
Camera Light Meter
Meter exposure with your device camera.
Lens, Focus & Format
Depth of Field
Hyperfocal and near/far focus limits.
Zone-Focus Table
Hyperfocal cheat sheet for street work.
Background Blur
How creamy your bokeh will be.
Macro Depth of Field
DoF at close-up magnifications.
Angle of View
FOV from focal length and format.
Equivalent Focal Length
Focal length across formats.
Aspect Ratio
Ratios and dimensions.
Macro Compensation
Extra stops for close-up work.
Diffraction Limit
The sharpest aperture for your format.
Format Size Compare
Film formats drawn to true scale.
Pinhole Camera
Pinhole size, f-number and exposure.
Darkroom & Developing
Dev Chart
B&W film development times.
Temp Compensation
Dev time at your water temperature.
Push / Pull
New EI and dev time for pushing.
Dilution
Mix developer dilutions.
Dev Timer
Multi-step timer with beeps.
Colour Process Timer
C-41 and E-6 step-by-step timer.
Fixer Clip Test
Fixing time and when fixer is spent.
Darkroom Test Strip
F-stop test-strip exposure sequence.
Print Enlargement
New exposure when you resize a print.
Enlarger Height
Head height for a print size.
Split-Grade Printing
Soft and hard exposure split.
Chemistry Tracker
Track developer capacity and freshness.
Scanner Densitometer
Read film density from a scan.
Film, Speed & Data
Film Speed Converter
ISO, ASA, DIN and GOST.
DX Code Decoder
The silver DX contact pattern.
Frames Per Roll
Shots per roll for every format.
Bulk Loading
Rolls and cost from a bulk roll.
Cost Calculator
Cost per shot and per roll.
Spectral Sensitivity
What colours each film type sees.
Cine Film Run-Time
Super 8, 16mm and 35mm running time.
Random Film
Let fate pick your next roll.
Scanning & Image
Scan Resolution
Megapixels and print size.
Film Look Preview
Grade a photo with a film look.
Negative Converter
Invert a negative scan to positive.
B&W Filter Simulator
Preview red/orange/green filter tones.
Contact Sheet Maker
Arrange scans into a contact sheet.
Film Scan EXIF Writer
Add camera and film data to scans.
Color Temperature
Mired shift and WB filters.