|Posted: Sat Aug 28, 2021 5:18 am Post subject:
|Doc Sharptail wrote:
I think this lens is newer than the 645 series.
It was probably made for the ETRS-i camera.
It is similar in appearance to lenses of the SQ-a system with the 8 gold contacts.
IIRC, I could DOFPV easily with the power off on my SQ-a.
I can't remember if it was a lever/pin, or rotating collar that actuated the aperture. There was a hefty arm type lever inside the body for moving the aperture.
That RF may stand for retro-focus - which is quite plausible on a lens that wide in focal length...
Could you post a side on view showing the aperture and focus points?
Okay- I found the camera and your lens through Google-fu.
With it being a range-finder designed lens, aperture control is likely going to be a low priority.
A mechanical/electro aperture control could be possible- but I don't see why on a range finder system.
Actually got a bit confused as this lens kept on coming up as f4.5 on google- it took a while.
D-810, F2, FTN.
50 f2 H nikkor, 50 f 1.4 AI-s, 135 f3.5 Q, 135 f2.8 Q,
50 f2 K 2x, 50 f2 a/i, 28mm f3.5 A/I-s, 35-105 3.5-4.5 A/I-s, 200mm f4 A/I-s, partial list.
"Ain't no half-way" -S.R.V.
"Oh Yeah... Alright" -Paul Simon