A 'follow focus' is a focus control mechanism used in film and video cameras.

Such information could be used to help focus control measures, help the public reduce risks and prevent panic.

He fumbled at the focusing control and panned across the front of the caravan.

Heck, since that's how cheap cameras and phone cams work, half of them don't even have a focus control!

Though often overlooked, this feature allows you to focus using the ring around the lens, which offers great focusing control.

The study suggested that well depths and ion focus control can be achieved by variations of field strength.

"We are trying to agree on more focused controls on Iraq's weapons and illegal oil exports," he said.

Helping himself to a pair of binoculars on the console, Bolan adjusted the central focusing control.

The project was stopped and Zeiss designed a new lens with focusing control by moving the whole lens.

These new generation of heads do not only require intensity, position and focus control, but will require video content control as well.

Genie fiddled with the focus control.

The index finger could be moved quickly and easily, back and forth, from the power manual focusing control to the shutter release button.

Focus Control: single focal lens.

This in turn allowed the condenser to be focused on the specimen using a field diaphragm and condenser focus control.

As technology, resources, social expectation or regulatory requirements change, hazard analysis focuses controls more closely toward the source of the hazard.

The Scout does not have selective focus control and is intended for use as a traditional fisheye lens with a very close minimum focus distance.

Focusing control at the ocular end of the sight - meant to obtain a sharp picture of the object and reticle.

Opto-mechanical spectacles allow focus control by the wearer via movement of a small slider located on top of the bridge.

Just switch the camera's focusing control to manual and you're ready to match your focusing wits against the accuracy of the camera's computer.

In competition you simply focus on the target and deduce the distance from the marks you made on the scope's focus control.

But in giving the cymbal designer more options, they allow more precise and focused control, and production of a wide range of sounds.

Quite unlike Anton himself, who always tried-and almost always succeeded-in maintaining a tight and focused control over his thoughts and actions.

With a manual connection, the aperture and focus controls of the lens cannot be controlled or read from the camera; the lens must be focused manually.