35mm Film

Overview

35mm film arrives in a light-tight cassette with a leader already cut. Its perforations run along both edges and locate the frame in the camera, which means the format is mechanically forgiving: almost every 35mm camera ever made will accept almost every 35mm cassette.

The small negative is the format's one real limitation. At 24 × 36 mm it needs roughly a 7× enlargement to reach 8 × 10 inches, so grain and focus errors become visible much sooner than with medium format. In exchange you get 36 frames per roll, compact bodies, fast lenses and the cheapest per-frame cost in analogue photography.

Choose an emulsion by grain, latitude and tonality rather than by brand. A 400-speed traditional-grain film such as Tri-X or HP5 Plus tolerates two stops of underexposure and pushes beautifully; a modern tabular-grain film such as T-Max 400 or Delta 400 is finer and less forgiving of sloppy exposure.

What it does well

• 36 exposures per roll keeps a whole session on one strip
• Widest camera and lens availability of any analogue format
• Leader already cut — loadable in daylight
• Cheapest cost per frame, easiest to bulk-roll
• DX coding lets modern cameras set the ISO automatically

Safety notes

Working notes

• Rewind with the leader just inside the cassette so it cannot unwind, but leave enough to pull out for processing.
• Push processing works best on traditional-grain emulsions; tabular-grain films lose shadow detail quickly.
• Write the film stock, EI and any push on the cassette in permanent marker before you develop.
• X-ray scanners at hand luggage checkpoints are usually safe below ISO 800. Put anything faster, and all undeveloped film, in your hand luggage.

Compatible with