Kentmere Pan 100 100ft Bulk Roll: A First-Timer's Guide
By WALKENS House of Film | Published: 2026-11-03
Category: How-to Guides
A practical first-timer's guide to the Kentmere Pan 100 100ft bulk roll: what you need, how to roll your own 35mm cassettes, and the mistakes to avoid.
Quick answer
Start with a Kentmere Pan 100 100ft bulk roll and a bulk roller, then load your own 35mm cassettes in a dark room or changing bag. This roll yields roughly 18 rolls of 36 exposures, so it is a low-risk way to learn bulk rolling and cut your film cost per frame.
Why Kentmere Pan 100 suits a first bulk roll
Kentmere Pan 100 is a slow, forgiving black-and-white film, which makes it a sensible choice for your first bulk roll. Slower films are less sensitive to small loading errors and are easy to develop at home. The 100ft length gives you room to practice without wasting a whole roll if your first cassette is imperfect.
The trade-off is speed: Pan 100 needs bright light or a tripod in low light. If you mostly shoot indoors or at dusk, consider a faster stock for everyday use and keep this roll for daylight work.
What you need before you start
You cannot load a bulk roll without a bulk roller and empty 35mm cassettes. The roller holds the 100ft roll and lets you wind a measured length into a cassette in the dark. Empty cassettes are reusable if you treat them well; ask your supplier to add them to your order so you are not stuck when the roll arrives.
Set up a completely dark workspace, either a windowless room at night or a changing bag. Any light leak will fog the film, and fogging is not always obvious until you develop the first roll.
How many exposures to expect
A 100ft bulk roll is typically enough for about 18 rolls of 36 exposures. You can choose shorter rolls, such as 24 or 12 exposures, if you want to test a new camera or finish a roll quickly. Shorter rolls use less film per cassette, so you get more cassettes from the same bulk roll.
The exact count depends on how much leader you leave and how carefully you measure. Keep a simple tally so you know when the bulk roll is nearly finished.
Step-by-step: loading your first Kentmere Pan 100 bulk roll
- Set up a completely dark workspace: Work in a dark room or changing bag with your bulk roller, empty cassettes, scissors, and the bulk roll within reach. Common mistake: relying on a dim room instead of total darkness, which fogs the film before you start. Test your darkness by waiting two minutes; if you can see your hand, it is not dark enough.
- Load the bulk roll onto the roller: Open the bulk roll in darkness and attach the film leader to the roller spindle according to the roller's instructions. Checkpoint: make sure the film sits flat and the roller turns freely before you close the lid.
- Attach an empty cassette to the roller: Feed the film end into the cassette's felt light trap and engage the spool. Common mistake: pushing the film in at an angle, which can scratch the emulsion or jam the cassette. Keep the cassette aligned straight with the film path.
- Measure and wind the desired number of exposures: Use the roller's counter or measure the film length for 36, 24, or 12 exposures. Wind slowly and steadily. Checkpoint: stop when you reach your target count rather than guessing by eye. Write the exposure count on the cassette so you remember what is inside.
- Cut the film and finish the cassette: Cut the film cleanly with scissors, leaving a short leader if your camera needs one. Close the cassette and repeat for the next roll. Common mistake: cutting too close to the cassette, which leaves no leader to load into the camera. Leave about 3–4 cm of leader outside the cassette.
- Label and store your finished rolls: Mark each cassette with the film name and exposure count, then store them in a cool, dry place away from light. Checkpoint: keep unused bulk film tightly wound and sealed between sessions.
Product facts
- Kentmere Pan 100 35mm -100ft Bulk Roll: This is a 100ft bulk roll for rolling your own rolls at home, and it requires a bulk roller. You will need to budget for a bulk roller before you can use the film, so plan that purchase alongside the roll.
Kentmere Pan 100 35mm -100ft Bulk Roll - Kentmere Pan 100 35mm -100ft Bulk Roll: The roll yields approximately 18 rolls of 36 exposures. That gives you plenty of practice rolls to refine your loading technique before you rely on the film for important shots.
