abruzzi
Member
In theory, the 135N (normal 35mm frame) backs can be modded to 135W as well.
I'd be curious to see how that is done. I have a 135N back for my ETRSi, but I hardly use it. I'm guessing you'd have to cut out the frame on the back to allow light to create a wider image, but you'd also have to either change the internal gearing to advance further, or after every shot, cap the lens and take a second shot to get it to advance a second time...

