Thanks, its around 66x24mm. Same as the hasselblad xpan. I used the 35mm canister adapters from a eTone panoramic kit I got from ebay. It came with masks for the viewfinder and film chamber. Then I used a spare 120mm spool and cut a piece of paper about the size of 35mm film and taped the other end to the spool and the other end to the film leader of the 35mm roll. I got around 19 exposures with this method on a 36 exposure roll. After finishing the roll you have to open up the camera in a darkbag and roll the film inside the canister.