Back story. In the early hours of Saturday morning I woke up as you do sometimes and starting thinking about something. As you try to fall back into that delicious void called sleep I started thinking photographic thoughts......no not the other rhyming kind! :-)
I have been on a film buzz and loving it...there trying to fall back to sleep...the thought occurred to me I had a 120 film back and I could use it in my Sinar F. One of the 3 I own LOL.
This could allow me to use other lenses from my arsenal.
In my pre dawn stupor I was imaging the holder having more than the 6 x 7 aperture it has...BUT
here are some of the first images from this being worked out and developed later in the day. just simple home shots. Dropped a couple of frames as I came to terms with the adapter. the only advantage is using some of my lenses...really it seems more trouble than using any of my other 120 beauties (cameras) but it was fun and the lense made a huge difference.

Your photos and commentary are educating me. I had never heard of the Sinar F. It sounds like fun, as a little trouble can sometimes be. This is a lovely picture, by the way.

Thanks very much Bob. They are a lovely camera, the usual Swiss ultimate modular kinda system...may be not so convenient for hikes out in the field......I have an 8 x 10 Sinar P too.