How to Load Film in a 35mm Camera - Beginner Friendly

Loading film is the thing new customers are most nervous about when they walk a first camera out of our East Williamsburg shop. It shouldn't be. Learning how to load film into a camera takes about two minutes of practice, and once it clicks you never think about it again. Cameras come across our repair bench every week with the damage from the same three or four loading mistakes. This guide covers SLRs, point-and-shoots, and bottom-loading Leicas, and it tells you how to confirm the film is actually moving before you burn a roll on nothing.

Before You Start Loading 35mm Film

You need a roll of 35mm film, the camera, and a working battery if the camera has a meter or a motor. A Pentax K1000 fires fine without one but won't meter. A Canon AE-1 won't fire at all. The shutter is electronically timed, so a dead 6V cell reads as a dead camera. Barnack Leica owners also need scissors.

Check the camera before the film goes in. Fire the shutter fast and slow, work the advance lever through a full stroke, make sure the back actually latches. Diagnosing a sticky shutter on an empty camera beats wondering later whether a blank roll was you or the camera.

Load in shade, not direct sun. The leader hanging out of the cassette is unprotected, and hard sunlight fogs it and can creep past the felt light trap into your first usable frames. Turn your back to the sun or duck into a doorway.

Loading Film Into an SLR, Step by Step

This is the sequence for a manual SLR with a multi-slot take-up spool. The Canon AE-1 and the Pentax K1000 are the two we see most, and they load identically. The AE-1 Program and AT-1 work the same way. An A-1 loads identically but sets ASA with a lock button on the film speed dial rather than a lifted collar.

The two controls the first steps are about, shown on a stripped Pentax K1000 so you can see them clearly. Left, the shutter speed dial with the ASA window underneath it. Right, the rewind knob and its fold-out crank, which does three jobs in this process: it opens the back, it takes up slack, and it tells you the film is really moving.

1. Set the film speed first. Neither camera reads DX codes. Lift the collar around the shutter speed dial and turn until the ASA window shows box speed: 400 for HP5, 200 for Gold. Do it now; you can't see the box once the film is inside.
2. Open the back. Pull the rewind knob straight up, past the point where it lifts, until the back pops. There is no separate latch on either camera.
3. Drop the cassette in the left chamber. Protruding spool end down, leader pointing across. Push the rewind knob back down until its fork drops into the cassette spool; rotate it slightly if it won't seat.
4. Pull the leader across to the take-up spool. Both cameras use a metal spool with several slots around it. Push the tip into any one of them, far enough that it is genuinely gripped. On any multi-slot spool, check the tip has not poked back out of the next slot along. Minolta's own X-700 manual warns about it.
5. Advance and check the sprockets. Work the lever (firing the shutter between strokes if it locks) until the teeth sit in the perforations along both edges, top and bottom. Keep the leader off the shutter curtain while you work. We replace curtains punctured by a film tip more often than you would think.
6. Take up the slack, then close the back. Turn the rewind knob in the direction of its engraved arrow until it stops, which pulls the film taut. Press the back shut until it clicks.
7. Fire blank frames until the counter reads 1. Advance and release the shutter, and as you do it watch the rewind knob rotate backward against its arrow. That backward turn is film pulling out of the cassette, and it is the only proof that matters. Usually two strokes; go by the counter, not the count.

Both manuals are free at butkus.org. The Canon AE-1 and the Pentax K1000. Worth downloading for any camera you own.

Point-and-Shoots: Auto-Load and DX Coding

Auto-loading point-and-shoots thread the film for you, and the only thing you can get wrong is where the leader ends up. Open the back, drop the cassette into its chamber, then pull the leader across and lay it flat between the guide rails so the tip lines up with the index mark printed inside. Canon Sure Shot bodies mark it orange, Olympus Stylus bodies red. Line the tip up with the mark, not past it, not short of it. That is the entire skill on every auto-loader in our point-and-shoot inventory.

Close the back and the motor winds to frame 1 on its own. A Stylus shows "1" on the LCD when it worked and a blinking "E" when it didn't. A Sure Shot blinks "0" on the frame counter. Reseat the leader on the mark and try again.

These cameras set ISO themselves by reading the DX code, the checkered silver-and-black panel on the canister, through contacts in the film chamber. An Olympus Stylus reads ISO 50 to 3200. The catch is film with no code, meaning bulk-rolled stock or a canister you have taped over: most bodies default to ISO 100, so bulk-rolled HP5 gets shot two stops over.

Rangefinders: Bottom-Loading Leicas and the Trimmed Leader

Screw-mount Barnack Leicas, the II and III series, have no back. The baseplate twists off, everything goes in through the bottom, and the leader must be trimmed first. This is the part everyone gets wrong. Leitz specified a tongue about 10cm long and roughly 2cm wide (the published pattern calls for 22mm), curving back into the full-width film between two perforations so there is no sharp corner. Scissors or an ABLON-style template.

The trim is not optional. A Barnack's sprocket does not let film slip over it. The perforations feed onto the teeth sideways as the film goes in, and a factory leader is too short to reach. Load one uncut and you jam the transport or drive the film tip into the shutter cloth.

Slide the trimmed tip under the spring clip on the take-up spool, then lower the cassette and spool in together. Turn the rewind knob to seat its fork, wind on, and watch the knob turn backward as proof the film caught. If you want to see it, take the lens off and hold the shutter open on B. Refit the baseplate, fire two blanks, and set the counter disc to 0 by hand.

M-series bodies are still bottom-loaders. The baseplate comes off the same way, but a hinged back also swings open so you can see what you are doing. An M3 or M2 uses a removable spool with a spring clip; from the M4 on, that became the fixed three-prong "tulip." Neither needs a trimmed leader.

How to Know If Your Film Is Loaded Properly

The rewind knob test from step 7 is the one that settles it. Two more checks back it up.

Start with the counter. A manual SLR should read 1 after two blanks. An auto-loading point-and-shoot should read 1 on the LCD with no blinking error. A Barnack reads whatever you set it to.

The advance lever tells you too. Loaded film gives even resistance through the stroke and a definite stop at the end. A lever that swings light and loose means nothing is on the spool. Learn that feel and you will catch a failed load before you leave the house.

Common Mistakes and How to Fix Them

The classic is a leader tucked into the spool slot but never actually gripped. It looks loaded, the counter climbs, and you get 36 blank frames. The rewind knob test catches it every time.

The others: loading in full sun; forgetting to set ISO on a manual SLR and shooting a whole roll at the last film's speed; and forcing the advance lever when it stops at the end of a roll, which tears the film's perforations and is how we end up replacing stripped wind gears and sprocket wheels.

If you open the back mid-roll, close it immediately, reflex not deliberation. Film already wound onto the take-up spool shields itself in its own coils, so damage is usually confined to the outer few frames, and everything still in the cassette is untouched. Rewind, mark the canister, and tell whoever develops it. Do not throw it out. CineStill stocks have the remjet layer removed and fog more readily in the same situation.

Frequently Asked Questions

How do I know if my film is loaded properly?

Take up the slack with the rewind knob, then advance one frame and watch that knob. If it rotates backward, film is being pulled from the cassette and you are loaded correctly. A counter reading 1 and firm resistance on the advance lever confirm it.

What happens if I open my camera with film in it?

Close it immediately. Film already wrapped around the take-up spool shields itself, so you typically lose only the outer few frames rather than the whole roll. Everything still inside the cassette is safe. Rewind, label the canister, and tell your lab.

Do I need to trim the film leader?

Only for screw-mount Barnack Leicas, which need a tongue about 10 to 11cm long. Every SLR, every point-and-shoot, and every M-series Leica takes the factory leader as it comes. Trimming film for a camera that doesn't need it just wastes a frame.

Why do you burn the first two frames?

The leader sits outside the cassette in daylight before loading, so that stretch is already fogged. Advancing and firing twice winds the ruined section past the shutter. A 36-exposure roll is manufactured with enough film that you still get your 36 after the blanks.

Once you have a roll shot, our East Williamsburg lab develops 35mm, 120, and disposables, $18 a roll for standard 35mm and 120, typically back in four to five business days, mail-in included. Restock on 35mm film, or find something to shoot it in from our 35mm camera inventory.