zoom ring

常见例句

When the Fn 2 lever next to the lens is placed downward, the ring around the lens switches to analog control so it can be used as a focus or a zoom ring.
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In macro mode, which can be set by pushing the zoom ring forward while depressing the macro button on the side of the lens, focusing is possible between 8 and 20 inches for close-up shooting with a maximum image magnification of 0.72X (35mm camera equivalent).
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The HC-V520 also makes an appearance with its 50x optical zoom full HD and 5-axis OIS. If you want some 3MOS action with manual ring, EVF and level gauge action then the HC-X920 is the one for you.
ENGADGET