Your post shows you know a lot about Bronicas! I have an S2 with 3 really good lenses. I'm wondering if the S2 focussing ring assembly that accepts the lenses themselves will fit onto a Bronica SQ or ETR body. Thanks! Geoff Ferguson
No. There is no commonality between the leaf shutter models and the focal-plane shutter models.
And welcome, Geoff.
I do use a digital device in my photographic pursuits when necessary.
When someone rags on me for using film, I use a middle digit, upraised.