Quote Originally Posted by arthurking83 View Post
No problem for any recommendations M!

A couple of easy things to check if you don't have another lens to play with.

Take lens off camera. On the bayonet mount is a small protruding metalic black tab that slides along a short radial arc .. it'll be close to the rear lens element.
if you slide it up and down to it's maximum possible locations the aperture diaphragm will open close. In it's natural position the diaphragm is closed down while the lens is off the camera.
Firstly thanks for the info guys/gals - it really helps and i appreciate it a lot

The bummer is my mate who used to work at Nikon now doesn't - otherwise i would have NO problems :-)

I have tried the lens on my D7000 - same thing
I tried different lenses on my D-800 and they were ok - so im pretty sure it is a lens specific thing - which leads to:
You know the first step above here i think is it. I tried to move the small metallic tab and it only moved if slightly forces with a clunking noise!

I tried the same tab on other lenses they are smooth so i think it is in there
DSC_0719.JPG
Would that explain why the command dial doesn't seem to work on the viewfinder and it goes screwy in "info" mode as well?

Thanks for the great help

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