Automatic Aperture: Lens aperture mechanism that stops down to s preset size just as the shutter is fired, afterwards returning to the maximum aperture again for focusing and composing the next image.

 

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Automatic Aperture: Lens aperture mechanism that stops down to s preset size just as the shutter is fired, afterwards returning to the maximum aperture again for focusing and composing the next image.

Automatic Lens: Lens which remains at full aperture whatever working aperture is set, until the shutter is released. This allows optimum focusing, without affecting metering. Also referred to as automatic aperture.

Automatic Vehicle Location (AVL): Combining a location-sensing device (such as a GPS receiver) with a wireless communications link to provide a home office or dispatcher with the location of a vehicle or mobile asset (such a . . . View Full Definition

Automatic Withdrawal: A mutual fund that gives shareholders the right to receive a fixed payment from dividends on a quarterly or monthly basis.

Automatic-On Headlamp: An automatic-on headlamp, or a daytime running lamp (DRL), is a motorcycle’s headlamp that automatically turns on when the bike is started. It’s mandatory on all street bikes in North Americ . . . View Full Definition

Automatic Two-Putt: When a golf course declares that players may consider the ball to be holed in no more than two putts once their ball is on the putting surface (most commonly because of aeration or temporary . . . View Full Definition

Automatic Tuner Activation (ATA): A feature that allows the tuner to be accessed while a tape deck is rewinding or fast forwarding.

Automatic Stop: A device which may be attached to any of several parts of a machine tool to stop the operation of the machine at any predetermined point.

Automatic Terminal Information Service (ATIS): Continuous broadcast of recorded non-control information in selected terminal areas, to improve controller effectiveness and to relieve frequency congestion by automating repetitive transmis . . . View Full Definition

Automatic Tide Gauge: An instrument that automatically registers the rise and fall of the water level. In some instruments, the registration is accomplished by recording the heights at regular time intervals in d . . . View Full Definition