Thanks for replies!
@JoeKitchen can you please share what were prices for servicing activities performed by Rodenstock and Arca?
@Chiek, what was exact model of you digital shutters? These one before Expolux? And how you were controlling them? How many exposures they last in your hands 5, 10, 20 000?
I guess you are using these lenses now with your very interesting home made cameras
Off the top of my head, I bought the 90mm used (with a Sinar shutter) from Peartree for £1200. I of course never saw it in this condition; only viewed it online in photos.
Peartree then sent it to Schneider actually (Rodenstock does not change shutters once the lens leaves the factory, or so I was told) for a new shutter & aperture, and then off to Acra Swiss to be mounted in the R mount. This was about £950.
So all together, £2150, or (at the time) a little over $3300.
The only complaint I have is that whoever mounted the shutter on at Schneider messed up the aperture scale. The scale is about 2/3 a stop too bright; f/11 on the lens is actually ~f/9. I never noticed this until one day I went from my 55mm to the 90mm and noticed the exposure was brighter. Not that big a deal and this does not effect performance. I only need to remember it.
I don't hold it against them though; I assume it must have been weird for team Schneider to work on a Rodenstock Lens.
At the time I bought this, I felt it was the perfect solution. I was told that the Sinar branded lenses are a little better since Sinar has stricter quality control. Also, prior to purchasing this, I bought another lens used that had a defective shutter that I was told was in perfect condition. (Fortunately I am familiar with Copel shutters, I was able to tell immediately it was defective and returned it.) Here I was getting a used lens, but the shutter was new.