Minolta 75-150 aperture ring not working

Started 3 months ago | Discussions thread
sybersitizen Forum Pro • Posts: 21,778
Re: Minolta 75-150 aperture ring not working

FrancoD wrote:

OK. The aperture blades are meant to be closed when the lens is off camera

That's incorrect. I have three Minolta MD lenses here (the type the OP has), and their diaphragms open and close as the ring is rotated when the lenses are not mounted.

and then should be fully open when mounted on the camera to then close down to the selected aperture when you take the photo.

That part's correct.

To the OP: There must be an internal problem with the linkage. The video below is not for your specific lens, but the structure might be similar. You'd have to at least remove the rear of the lens to see what's going on.

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