stop down


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stop down

[′stäp′dau̇n]
(optics)
To reduce the size of a lens aperture.
References in periodicals archive ?
The tradeoff here is you'll need to take longer exposures to acquire the same signal-to-noise ratio, but if you have to stop down your lens to reduce edge aberrations, you're already making this compromise anyway.
Ruben Loftus-Cheek and Cesc Fabregas were central to much of the home side's good work as they matched City for much of the first half and, when Loftus-Cheek turned Otamendi inside out, Joe Hart was forced to make a decent stop down to his left.
If we're able to, we'll stop down to support you," he wrote.
It holds the slide stop in its place and holds the stop down until the empty mag overcomes it, locking the slide open.
Always remember to slightly underexposure the sunset to create richer colours and, when the sun sets, stop down your lens to a high aperture such as f/22 to create a beautiful starburst effect.
At the start of the second half, Weidenfeller denied Sanchez with a low stop down to his left.
Liam Craig battled Lee Ashcroft well for the ball on the edge of the box, Scott Robertson picked up the scraps and only a fantastic stop down low from Craig Samson kept it deadlocked.