Hi all - new boy here. Couldnt find a search button on here for the forums, only for google, so posting this without knowing if this has already been done
I bought the TC301 for my 400/f3.5 Ai, due to the number of decent reviews i read all over the net. But when i mount the lens and TC together, then onto the my D2x, i can only get correct aperture reading in the display if going from f3.5 to f22 ( when using Aperture Ring and starting at f3.5 )
Soon as i use the Ap ring to come back to f16/f11/f8 etc, i got the display remaining at f22, and the metering sees f22 as well.
So with the Ap ring back to f3.5, I need to get the display and metering correct again, i get my fingernail on a little tab on the TC mount next to the lens mount, and physically move it back to its stop. Magically, the correct Ap of f3.5 appears in the display, and i can then move to f4 / f8 / f11 and so on, with correct display of chosen Ap and correct metering. But coming backward once i've stopped down doesnt work.
I am at a loss to find out which component isnt doing its job. The lens on its own W/O TC works a treat. I guess i could just leave the Ap on f3.5, as I wouldnt want to stop down any further anyways. I'm already at an effective f7 without moving the Ap ring off its max aperture. Its just weird that someone else on another forum who has the same D2x body, same 400/f3.5 lens , and same TC-301 does not have this problem.
He can stop down, come back to max Ap, and everything displays correctly.
Anyone got any clues ?