Here is a neat article by Robert Denham on his Bronica military experiences - Enjoy!
Posted by Bob Denham on February 09, 1997: In Reply to: Re: Bronica S and EC users posted by Roger Jones on September 19, 1996: Ain't this wierd! I have been using various Bronica models for over 35 years. Started with a "C" that was in a studio where I worked and then bought a standard "S". Traded it in for an S-2 that was stolen and recovered in the early 70s. Had to trade it in back then for an EC which I still have. The only problem I ever had was in '78 when the electronic timing circuit went out, which was fixed by Zenza at no charge. I also have two extra 120/220 backs and 1 6x4.5 15 exp. back. As for lenses, I use the 75mm Nikkor a lot of the time, but also love my Nikkor 50mm f:2.8. On the other hand the Zenzanon 150 is a good light-weight portrait glass. However, I also have one of the most curious lenses ever made for this camera. It is a SUN "Dionar" zoom 135~300 f:4.5 that is about 15 inches long and weighs a "lot" Would you believe that I used this thing for photo chase when I was in the Air Force? Of course the Eye-level prism (30 degree) finder and a pair of home-made grips did make it work out pretty good. It (the lens) goes on in place of the focusing ring. I had once heard a rumor of a power drive unit for this camera but never saw it. Every now and then do hear of a Polaroid back. Now the latest gadget seems to be a digital back. I dare say that such a feature will not be available for the likes of us "dinosaur jockies". I don't shoot much any more in the medium format. Only when I get the urge to be personally creative on my own time. I spent 22 years as a photographer/photojournalist in the USAF (4 with the "Thunderbirds") and ended up in the electronic communications media business. Now I'm Deputy Sheriff in charge of computer systems, so I don't have a lot of personal time for creativity. I do a lot of 35mm slide work for multi-media slide shows that I produce for local civic organizations and schools. Use Canon F-1 & F-1n equipment exclusively. I guess that makes me somewhat of a maverick in the photography industry. (Bronica over Hasse and Canon over Nikon) but that's the way I am. Anyway it's good to know that there are other kindred spirits out there in cyber space that know a good challenge in photographic equipment management. Now as to the question of focusing screens, there were only four: A,B,C,& D. I have NEVER been able to get any other that the one that came with the camera (A). Good luck. The poloroid backs were mostly after-market items that were made by other companies. Check with all of the large discount/used equipment distributors specifically for that TYPE of item. Both Marty Forscher in N.Y. City and Martin Strauss in Washington were able modify a type 4 polaroid back for this. It was large and unwieldy but it was there. Also that was THEN (the mid-70s) don't know about now. I have heard the Forscher has retired (I should hope so, he would be in his 60s) but Strauss is still around as SPTS somewhere on the East Coast between Atlanta and New York. Well that is all I can offer on the surface right now Like I said this is wierd! This interNet thing is alright! Let me know of anything more...73s-30-DoMuch aka: R.Denham "Sanity is for the unimaginative"