RB67 135 Panorama Back Cover

Panorama back cover replacement for Mamiya RB67 ProS back, preferably using a 220 back, so you can utilize the counter fully. 

Included parts are:

• cover replacement: fit like a normal cover, take off the original one, and put on the new one. Note that for easier printing, the vertical rib is removed, so be careful when aligning. 
• 135 film roller: for better rolling the film, fit 120 roll space. 
• Aim Plate: I put this on my view finder to help with framing

I use 0.2 nozzle on the cover plate, 0.4 on the roller.

For the 135 canister adapter, I used the one on maker world

When loading, I used around 40CM of wasted 135 film as a lead strip, taped to the beginning of film, rolled them back to the can, and load as normal.

I found 40CM is the sweet spot that can give me the full 20 frame that 220 counter can do, with minimal film waste.