No adapter is necessary for that lens, and as long as you keep the aperture ring at the base of the lens set to A (that's where the "A" setting is
), it will support full exposure automation as well as in-camera aperture control just like any other modern lens. You do not need to change anything in the menu.
The A 50mm F1.7 is a quite popular lens by the way as it delivers great image quality at an affordable price.
Even though the lens has an aperture ring, you should
always use the scrollwheel on the back of the camera to set the aperture and leave the aperture ring at the "A" position. If you were to move the aperture ring away from A, the exposure capabilities of the lens would be crippled and you would need to resort to
stop-down metering as with older M and K series lenses.
Hope this helps!
Adam
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