Exposure with Nikon 80-200 AF f2.8 D issue

[Nikanon]

Hi,

I was attempting to sell this lens. I have never had a problem with it before, yet when used for the first time in a while to try it out on a Nikon D700, the exposures when stopping down but maintaining an equivalent exposure got brighter. An exposure at f2.8 was correct, but an exposure metered correct at say f-22 was not. What is wrong with my lens? Will it be expensive to fix?

-Joshua

 

[Nikanon]

Anyone? Help?

 

[narsuitus]

Have you examined the lens to see if the diaphragm is closing during the exposure?

 

[landzaat]

It sounds like oily aperture blades, the lens isn't able to stop down proper 'cause of this. It's fixable.

 

[Christiaan Phleger]

Did you have the body set to use the aperture ring rather than the Sub-Control dial?