MGrayson
Subscriber and Workshop Member
Doug,
I don't mean move the mount! I agree that that would be too imprecise and useless for floating elements. I mean just have one motor in the camera body to move the lens elements, but have that be a modern Ultrasonic motor in a ring around the mount, and not the tiny screw drive that is usually found in in-body AF motors.
The motor would couple to a ring on the lens and drive the lens elements as usual. This might allow for smaller lenses. It's probably a bad idea because the motor would have to be strong enough for the largest lens in the system, and so that weight would be added, in effect, to every smaller lens.
To be clear - this would not be for any adapted or manual lenses. It would be a new system of AF lenses where the weight savings would be in having only one AF motor in the entire kit.
--Matt
I don't mean move the mount! I agree that that would be too imprecise and useless for floating elements. I mean just have one motor in the camera body to move the lens elements, but have that be a modern Ultrasonic motor in a ring around the mount, and not the tiny screw drive that is usually found in in-body AF motors.
The motor would couple to a ring on the lens and drive the lens elements as usual. This might allow for smaller lenses. It's probably a bad idea because the motor would have to be strong enough for the largest lens in the system, and so that weight would be added, in effect, to every smaller lens.
To be clear - this would not be for any adapted or manual lenses. It would be a new system of AF lenses where the weight savings would be in having only one AF motor in the entire kit.
--Matt
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