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In photography, manual focus override, also known as full-time manual focus, allows manual intervention in the autofocus acquisition process simply by turning the focus ring on a photographic lens. There are a number of technologies used to implement this feature.
AI Servo is an autofocus mode found on Canon SLR cameras, and in other brands such as Nikon, Sony, and Pentax, under the name "continuous focus" (AF-C). [13] Also referred to as focus tracking , it is used to track a subject as it moves around the frame, or toward and away from the camera.
A-DEP: [3] Canon also offers A-DEP (Automatic DEPth of field) mode on some cameras, which sets the depth of field and focus in a single shot. However, this requires lining up both the nearest and further objects on autofocus points at the same time, which may be difficult.
Enter the Canon Pixma MG2522 all-in-one, currently on sale at Walmart for just $29. You'd be hard-pressed to buy a single ink cartridge for $29, let alone an entire printer.
In 1987 Canon was the first to use USM (Ultrasonic Motor) with the Canon EF 300mm f/2.8L USM. [19] In 1989 Canon was the first to create a full frame f/1.0 AF (AutoFocus) lens and the only one until today with the Canon EF 50mm f/1.0L USM. In 1993 Canon was the first to create an interchangeable 10× superzoom lens for SLR cameras.
To disable the AutoComplete feature on Microsoft Internet Explorer 6.0: 1. Open Internet Explorer. 2. On the Tools menu, click Internet Options. 3. In the Internet Options window, click the Content tab. 4. Click AutoComplete. 5. Uncheck all the boxes. 6. Click Clear Forms. 7. Click Clear Passwords. 8. Click OK.
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The Canon AL-1 was an FD mount, 35mm single-lens reflex camera introduced in March 1982. [1] [2] Its main feature was the "Quick Focus" focus-assist system [3] that was aimed at those who had trouble focusing through the viewfinder—either novices, or those with poor eyesight—and was intended to head off competition from the first full-autofocus cameras from other manufacturers, such as the ...