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Leica R4, R5, R6, R7 were 35 mm SLR cameras manufactured by Leica between 1980 and 1997 and belonged to the manual focusing R-System, which was offered from 1965 to 2009. Following the success of the Leica R3 the company, in continuing cooperation with Minolta , produced the R4–R7 series all based on the same chassis.
QuickCam is a line of webcam video camera products originally produced by Connectix in 1994 and acquired by Logitech in 1998. Although its picture quality would today be considered primitive, it was the first widespread used webcam-like device.
The camera went into full production in 1963 and sales of several hundred of the model were achieved over the next few years. In the mid 1960s, following RCA’s lead, other versions of the 4-tube cameras were produced (see below for details). In many cases, advantage was taken of a newly available pick-up tube (the Plumbicon [3]). This new ...
A webcam is a video camera which is designed to record or stream to a computer or computer network. They are primarily used in video telephony , live streaming and social media , and security . Webcams can be built-in computer hardware or peripheral devices , and are commonly connected to a device using USB or wireless protocol .
The Bessa-R, introduced in 2000, was a rangefinder camera with a projected frame finder and a Leica screw mount. Although considerably cheaper than a Leica M camera, its viewfinder was comparable in function and feeling. It featured manually selectable frames for 35 mm/90 mm, 50 mm, and 75 mm lenses.
The cameras were first branded as "Wearable Card Cameras" and are about the size of a credit card and 9 mm-16 mm thick. The early models only had digital zoom, though more recent models have optical zoom as well. The Exilim Zoom series is the all-purpose line, all including an optical zoom. Several newer models support H.264 video compression ...
Many so-called "zoom" lenses, particularly in the case of fixed-lens cameras, are actually varifocal lenses, which gives lens designers more flexibility in optical design trade-offs (focal length range, maximal aperture, size, weight, cost) than true parfocal zoom, and which is practical because of autofocus, and because the camera processor ...
However, some bridge cameras have only moderate or short zooms (such as the Canon Powershot G9 [8]), while many compact cameras have superzoom lenses but lack the advanced functions of a bridge camera. With zoom ranges and sales rapidly increasing in the early 21st century, every major camera manufacturer has at least one superzoom camera in ...