Thanks for the useful info - very timely, too!
I currently have one R-D1 body, with a second on the way. Two lenses now (Zeiss 28, CV 50 Nokton) with a third (CV 35 Skopar classic) on the way. Was testing this morning for accuracy of focus, and the Nokton back-focused by about 3cm at 1 meter. Thought it might be the inexpensive Chinese ebay'ed adapter, so I switched to a genuine Leitz one - same result. Tried the Zeiss - spot on. Of course, it's a 2.8 rather than 1.5 and WA to boot, but still it was sharpest at the point the RF indicated.
So, having just read this thread on adapters, I checked the thickness of my adapters. Both seemed a bit thick - 1.03-1.04 mm, but then I noticed that there's a slightly thinner outer section, and when I miked that both came in at .98-.99 mm. JLW - where should I be taking the measurement?
Anyway, when the Skopar arrives (with a CV adapter), I'll test again. When the second body arrives, I should be able to test conclusively whether it's a problem with the RF, the lens, or the adapter(s). In the meantime, it'd be great to know where exactly the measurement should be taken - on the outer lip (slightly thinner) or the full flange body. Also, where does one get shims for adjusting the lens? Has anyone gotten these from Steve Gandy, or am I best off sending the Nokton back to him (had it a week or two) for one that focuses correctly, assuming that it is the lens?
As always, thanks for the help and the info, and merry Christmas to all!
waldemar