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Do you have a 120 film camera? Want to shoot images with the sprocket holes exposed? Want to shoot specialty films that are not available in 120 format? If so, or you just like to play with film, this adapter's for you.
Proven design in use by photographers, this adapts 35mm film canisters to work as a 120 format spool, and allows shooting 35mm film in any 120 medium format film camera. The 35mm film is centered on the 120 spool. This adapter enables the use of films that are not available in 120 format, and the entire 35mm film is exposed, resulting in images out to the edges, sprocket holes and all, resulting in a unique effect.
Do not force adapters on. Make sure the splines are aligned and if tight, trim/sand or wiggle on carefully. The splines may need to be trimmed to fit Kalt bulk loading canisters and some others.
The hole for viewing the film number (usually a red window) on the camera must be taped over with black gaffer's tape or some suitable opaque tape to avoid back side exposure of the film. You will need to wind blindly about 1-1/2 turns (for 6x6) at the beginning and taper down to 1-1/4 turn at the end. Most medium format cameras have no rewind, so you will need to unload the film in a darkroom or changing bag and manually rewind the 35mm film back into its canister. When processing, specify "process only" and "do not cut" and cut the film yourself.
These were designed for the Flyer 6x6 camera developed as a result of the Pinhole Printed Kickstarter project (pinholeprinted.com) but can be used in any 120 medium format camera. You may download and print your own, but I prefer the Shapeways version for accuracy and durability.
There is a metal version as well for durability:
License: CC by SA 3.0 - Attribution required
Get the set! 35mm Film Adapter PLUS 120 Takeup Spool +