How to Load Film in a Hasselblad 500CM
By Cute Camera Co. | Published: 2026-10-20
Category: How-to Guides
Learn to load 120 film into a Hasselblad 500CM with clear steps, common mistakes to avoid, and tips for smooth medium format shooting.
Quick Answer
Load 120 film into your Hasselblad 500CM by opening the back, inserting the spool into the take-up chamber, pulling the paper across to the supply side, and advancing until the arrow aligns with the start mark. Avoid common mistakes like incorrect spool placement or not advancing far enough.
Why Loading Matters: Avoiding Light Leaks and Wasted Frames
Loading film correctly in a Hasselblad 500CM is crucial to prevent light leaks and ensure every frame is properly exposed. A common issue is not seating the film spool firmly, which can cause uneven tension and lead to light leaks along the edges.
Another frequent mistake is failing to advance the film to the start mark, resulting in blank or partially exposed first frames. Taking a few extra seconds during loading saves you from wasted shots and frustration later.
Understanding the 500CM's Film Back
The Hasselblad 500CM uses interchangeable film backs, each designed for 120 roll film. The back has two chambers: one for the full spool and one for the take-up spool. The film path is straightforward, but attention to detail is key.
Before loading, ensure the dark slide is inserted to protect any film already in the back. If the back is empty, the dark slide can be removed for loading. Always work in subdued light to avoid accidental exposure.
If you're new to medium format, note that 120 film produces 12 exposures per roll on a 6x6 format. The film's paper backing has start marks that align with a red indicator on the back, helping you position the film correctly.
Step-by-Step: Loading 120 Film in the Hasselblad 500CM
- Prepare the camera and film back: Ensure the dark slide is inserted in the film back. If the back is empty, remove the dark slide. Open the camera back by pulling the two latches on the sides. Have your 120 film roll ready. Check that the dark slide is fully inserted before opening the back if there is film inside.
- Insert the take-up spool: Place an empty 120 take-up spool into the take-up chamber (the side with the winding crank). Push it down firmly until it clicks into place. Make sure the spool's slot faces the film path. Ensure the spool is firmly seated; a loose spool can cause uneven winding.
- Load the film roll: On the supply side, insert the new 120 film roll. The paper leader should come off the top of the roll and feed toward the take-up spool. Pull the paper across the film gate and insert the leader into the slot of the take-up spool. Make sure the paper is not twisted and lies flat across the film gate.
- Wind until the start mark: Turn the winding crank in the direction of the arrow until the paper is taut. Continue winding slowly until the start mark (an arrow) on the paper aligns with the red indicator on the film back. This ensures the first frame is positioned correctly. If you pass the mark, wind a full turn and start again; do not reverse the crank.
- Close the back and advance to frame 1: Close the camera back and press the latches to secure it. Advance the film by winding the crank until it stops. This cocks the shutter and positions the film for the first exposure. The frame counter should read '1'. If the counter doesn't advance, check that the film is loaded correctly before shooting.
Product Facts
- Hasselblad 500CM | Medium Format Film Camera: The Hasselblad 500CM features a modular design, allowing you to customize it with different lenses, viewfinders, and film backs. This modularity means you can practice loading on a spare back or swap backs mid-roll, making the 500CM a flexible choice for medium format photography.
Hasselblad 500CM | Medium Format Film Camera
