ckit wrote:
Hi all, I got the lens today.
When i put the lens up and down, I hear a sound like "nok nok" inside the lens, Is it normal?
The lens parks that floating elements and locks them. That sound can be heard with the 400/2.8 and the 600/4 when the lens is powered up or powered down. I believe it is characteristic of lenses with linear motors.
Dave
Nov 22, 2019 at 10:19 AM
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