Nikon D5600
The current line of SLR cameras Nikon covers the entire spectrum of interests of customers. It has cameras with full-frame matrices (FX, frame size about 36 × 24 mm) and…

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Nikon D5600
The current line of SLR cameras Nikon covers the entire spectrum of interests of customers. It has cameras with full-frame matrices (FX, frame size about 36 × 24 mm) and…

Continue reading →

Choosing a Digital Camcorder
In recent years, the choice of a digital video camera has become an increasingly difficult task: the number of models and formats has been increasing and continues to grow, more…

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technologies

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The most recognizable camera in the world

The history of Polaroid began in 1922 at the Mouven Summer Camp for Boys, which was located on a lake in Connecticut. Barney Griden worked as a mentor in the camp, he was passionate about physics and later patented eight inventions for scuba diving.

Barney demonstrated scientific experiments to teenagers, woke them in the middle of the night to show a thunderstorm and explain its nature. Seen experiments so influenced his students that in the future many of them took up science.

The most famous among those students was Edwin Land, he patented 535 inventions – only Thomas Edison received more patents. Land’s inventions include a polarizer, an X-ray film, 3D films, night vision devices for the army, and much more. The scientist led the development of the U2 spy plane when he was an adviser to U.S. President Dwight Continue reading

Standard Definition Video Recording Formats

First of all, it should be noted that, without exception, all modern digital video cameras use certain compression algorithms and compression of the original video, and the “recording format” just characterizes the compression algorithms used. Let’s see what recording formats are found today in standard-resolution digital video cameras; we will talk about high-resolution video cameras separately, a little later.

DV is a video format with frame-by-frame compression (compression), that is, each frame of the video is compressed individually. At the same time, the compression ratio can be variable within the same frame — areas of the image that are difficult to compress are compressed with a lower compression ratio, and simple ones with a larger one. In this case, the total compression ratio for the entire frame remains constant (5: 1). The resulting stream for video is approximately 25 Mbps. The DV frame size is fixed and is (for the PAL standard) 720×576 pixels. This format is used in miniDV camcorders, and video recording, respectively, is performed on miniDV cassettes. Continue reading

TRENDNET TV-IP851WIC INTERNET CAMERA TEST: HOME CCTV SYSTEM

Reasons for concern – what happens at home, in the country, in the garage, while you are not there – everyone can be different. It is not necessary to be afraid of robbers, a sudden fire can also make significant adjustments to the layout of the room and to your budget. Or maybe you want to look after a small child – and for this, too, there is no point in buying expensive equipment, a fairly small Internet camera.

In today’s article, we will talk about the TRENDnet TV-IP851WIC camera, the price of which in the Russian market ranges from 4,500 to 5,500 rubles – quite budget. The camera can “see” in the complete absence of light, and also determines the movement in the frame. But that is not all.

Appearance
The camera is a device the height of a large cup and the thickness of a desktop stationery set (such cylindrical supports for pencils, pens, scissors, etc.). Continue reading

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The collapsed camera market is kept afloat by very expensive cameras. Figures
Despite the general decline in the global camera market, premium devices continue to gain popularity among consumers, also contributing to the growth of the interchangeable lens market. This situation is…

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A brief history of the camcorder
According to a legend born in the bowels of Sony, the first amateur analog video camera was created in 1980. However, the real consumer war begins in 1985, when Sony…

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Nikon COOLPIX 8400
Compact digital camera with an excellent wide-angle lens 24-85 mm *, a matrix of 8 million effective pixels and a wide range of additional functions. * equivalent for 35 mm…

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HOW TO DIGIT AN OLD VIDEO CASSETTE UNDER HOME
VHS video cassettes and VCRs designed for playing them first appeared on the market in 1976 and successfully outlived Sony Betamax and Video 2000 technologies. In the 1990s and 2000s…

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