How to Load 35mm Film into Paterson and Stainless Steel Tanks
Learning how to load 35mm film onto a developing reel is an essential first step in processing your own film. In this video tutorial, I demonstrate how to load both Paterson plastic reels and stainless steel reels, then place them inside their developing tanks.
Although both systems keep the film separated so chemistry can reach its surface, they use different loading techniques. Understanding how each reel works will help you build confidence and prepare your film for development.
Loading 35mm Film onto a Paterson Reel
Paterson reels use a ratcheting action to feed film into spiral grooves. The film leader enters through the reel’s loading guides at the outer edge. Alternating the two sides of the reel advances the film inward. Starting with a completely dry reel helps prevent sticking and makes loading easier.
Loading 35mm Film onto a Stainless Steel Reel
Stainless steel reels load from the center outward. You secure the film at the reel’s center, gently bow it across its width, and rotate the reel while guiding the film into the spiral. Proper alignment keeps adjacent sections of film from touching, allowing even development.
Practice Before Working in Total Darkness
Practice with a spare roll of film in room light so you can see how each system works. Once you feel comfortable, repeat the process with your eyes closed before loading an exposed roll.
Load undeveloped 35mm film in total darkness or inside a light-tight changing bag. A darkroom safelight is not safe for ordinary camera film. Once the loaded reel is inside a correctly assembled, light-tight developing tank, you can turn on the lights and begin processing.
Watch the tutorial to follow both loading methods and become more comfortable developing your own 35mm film.
