I have a Nikon D7000 and I recently purchased a used 50mm f 1.8D for it. I am unable to get the aperture of the lens to change. It seems to stay stuck at completely open version of the lens (1.8f).
What I've done so far:
- Set the aperture ring on the lens to 22
- Locked the ring (using the orange button)
- Change the aperture in the camera body with the dial
I get no errors, however, regardless of which aperture I set on the camera body, the lens stays wide open. For example, The photo I take on manual mode with 1.8f and 1/60 will look exactly same as 22f 1/60. I also don't see the lens blades closing.
If I dismount the lens the aperture ring correctly switches through all of the stops and the blades react properly. I have noticed that as soon as I put the lens on the camera body, the blades will completely open regardless of the F-Stop.
I am unsure what I am doing wrong. Any pointers will be greatly helpful!