automatic focus


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automatic focus

[¦ȯd·ə¦mad·ik ′fō·kəs]
(optics)
A device in a camera or enlarger which automatically keeps the objective lens in focus through a range of magnification.
References in periodicals archive ?
"The eye, like a top-of-the-line modern camera, contains a self-adjusting aperature, an automatic focus system, and inner surfaces surrounded by a dark pigment to minimize the scattering of stray light.
The slides also reveal the main camera might come with AI Smart Zoom, moving object detection, automatic focus, and zoom tracking.
South Korean publication (http://english.etnews.com/20161129200001) ET News reported Tuesday that Samsung is actually planning to incorporate automatic focus (AF) function to the Galaxy S8's selfie camera.
The pattern of atrial bigeminy seen in the Figure also could be produced by an automatic focus in the A-V junction or low in the atria.
It features a 420:1 (35 optical/12 digital) zoom with automatic focus and self-contained waterproof lighting for enhanced detailed viewing of cracks, breaks, pipe separations, scale and various defect conditions from hundreds of feet away.
Outstanding features include: 5Mega Pixel sensor takes 2 seconds to scan and save colour / b&w slides / negatives; FREE IGB SD memory card (1000 image storage); preview images on colour LCD screen; automatic focus, exposure, and colour balance;'flip','mirror', and 'rotate' buttons (for correcting backwards / upside down scans), an optional-use USB port and cable for connecting to a PC/MAC (drag files from SD card to computer).
Weighing in at 4.85 lbs, it offers SXGA resolution of 1280 x 1024 pixels, and 3X optical zoom with automatic focus. Using the split-screen feature, presenters can present a previously captured image stored in the camera's internal memory side by side with a real-time image.
The device is actually many tools in one: it's a multiple-lens microscope that fits in the palm of your hand and instantly magnifies (from 1X-400X) whatever you want to look at--a flower, rock, mealworm larva, sediment or soil sample, or even the inside of a student's ear--while its internal lighting and automatic focus make it incredibly easy to use.
Made by Datacard Group of Minnetonka, Minnesota, the camera package features built-in flash, automatic focus, and an auto-crop capability that eliminates the need to pan, tilt, zoom, or view images on the monitor before they are captured.
Fully integrated automatic focus control (AFC) allows for consistent and repeatable part processing with reduced programming and set-up time.

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