Until 3D printing was cheap(ish) converting old bigger format cameras to use 120 wasn't a very practical exercise. Mind you, I've seen 116 and 122 spool ends attached to a 120 spool, but they weren't something you could just order after a quick Google search...
Until 3D printing was cheap(ish) converting old bigger format cameras to use 120 wasn't a very practical exercise. Mind you, I've seen 116 and 122 spool ends attached to a 120 spool, but they weren't something you could just order after a quick Google search...
I have a Kodak Reflex II with automatic frame counter, but the counter is driven by a friction wheel -- a toothed wheel at the edge of the roller at the takeup end of the frame gate; this rides in the rebate of the emulsion side of the film. I also have a Bantam RF that uses a similar wheel riding the rebate of 828. Assuming Kodak stuck with a system that worked, you may find the 120 film fails to drive the counter mechanism in your Monitor 616.
Now that you mention it, pretty sure the counter on my Medalist II works the same way.
My curiosity is piqued re the Monitor and will endeavor to dig it out this weekend.
Thanks Donald.
The Rollei 24 frame kit is for 120 film. It has a counter geared for 24 frames. As I understand choiliefan's post, he took the internal film mask and opened it up to each side. Here's an Ebay grab of a kit. The internal mask is the lower right frame that locks inside the camera.
The guy who invented the scissors also invented this method, even before photography. (He not even needed to mask, as he was smart enough to recognise, that it is more flexible to cut from the image after it is made.)
Rollei had an adaptor that did exactly this without wasting film. It consist of gears with a lower number of teeth that you install into the camera so it advances not a complete frame height but only half. You get 16 frames on a roll of 120 film. The set comes with mask for the film gate, the viewfinder and the sunshade.
A similar adaptor exist for the Flexaret.
24 frames per roll of 120. I'm sure Leonardo D was cropping his paintings with a pen knife but I'm no Leo and I don't really like cutting up my negatives.
I've gotten closer to 30 exposures on some rolls btw.