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Tamron Adaptall for Pentax ES

Posted 21/03/2022 - 11:27 Link
I have the Tamron Adaptall mounts for Pentax K,KA and M42. but I've not come across this one before.

I was wondering what the geared system was for?
Posted 21/03/2022 - 11:56 - Helpful Comment Link
I have a lens with one of these at home. I'll check it out this evening. I suspect it is to transfer the aperture setting to the camera so that the open-aperture metering can work. If I remember correctly, only the F, ES and ESII had open aperture metering.

Kris Lockyear
It is an illusion that photos are made with the camera… they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.

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