lens iris造句

• The spring that opens or closes the lens iris in the K-mount lenses may have to be reset to work in the opposite direction.
• Though Shackleford himself could adjust the lens iris, it is next to impossible to do so while also tracking the ball and keeping it centered on the screen.
• One could readily see all the aperture effects by pressing a preview button, which caused the lens iris to contract to the position set manually or by an exposure-priority semi-auto function.
• As a ball comes off the tee and soars skyward, the video technician in the truck must remotely adjust the lens iris just as the camera operator tilts the camera up, so that both the operator and the audience can continue to see the ball.