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Mamiya/Sekor ES for Mamiya Auto XTL
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PostPosted: Tue Nov 17, 2020 3:44 pm    Post subject: Mamiya/Sekor ES for Mamiya Auto XTL Reply with quote

Perhaps a silly question. I am repairing ES lens but forgot something: when lens off camera (I don't own any XTL body) and aperture closed to F16, does the lens closes it itself or is it done by camera. Question is regarding the orientation of spring in rear part.


PostPosted: Tue Nov 17, 2020 4:31 pm    Post subject: Re: Mamiya/Sekor ES for Mamiya Auto XTL Reply with quote

Pancolart wrote:
Perhaps a silly question. I am repairing ES lens but forgot something: when lens off camera (I don't own any XTL body) and aperture closed to F16, does the lens closes it itself or is it done by camera. Question is regarding the orientation of spring in rear part.


When the lens is off the camera, the aperture is always open (independent from the position of the aperture ring). It's the aperture lever controlled by the camera which actually closes the aperture to the desired value. Same principle as with the later Sekor E / EF lenses.

S


PostPosted: Tue Nov 17, 2020 5:51 pm    Post subject: Reply with quote

Awesome, thanks Steve!