Nikon F2 Question

Hi,
Thanks everyone for the replies and for some interesting and useful links.
The bottom line is that I concluded that the problem was mechanical and with the aperture coupling lever in the DP-1. I disassembled the meter and could see the linkage mechanism end-wise on. I didn't feel confident in dismantling it, but could see that when trying to go into the f5.6 to f16 range a cam was moving as far as the roller on a spring-loaded lever. The lever/roller assembly were reluctant to move, but with a single drop of light machine oil on the roller pivot and another on the pivot of the lever a bit of careful wiggling soon had it all moving freely. I suspect that the problem was caused by the previous lubricant having gone gunky. With a bit of luck it will now work for another 46 years (and see me out!)
I'll clean the electrical contacts whilst it's all in pieces but I'm confident that the original problem has now been resolved.
Thanks again and best wishes,
Steve

I assume you have checked the lens itself to see if that is the issue? It would be nice to try it on another body, just to see. If that isn't possible, take it off and see if it is working correctly off the camera at all apertures. Then try twisting the metering arm on the camera to see if it will go smoothly to full travel in both directions. Then ck to see that the little arm inside the mirror box that stops the lens down when you fire the shutter is working properly, and ck the arm that it hits on the back of lens to see if it is working OK too.

Whoops, you fixed it. Great! Always a good day when this happens. Congratulations.

I'm very glad you managed to get it going again! The F2 is a great camera, enjoy it!

Love happy endings!