Optimal Godox flashes for Canon, Nikon, Sony, Panasonic Lumix, Olympus, Fuji
Choosing the optimal system flash for Canon, Nikon, Sony, Lumix, Olympus, Fuji cameras. Everyone who likes to take pictures faced with the situation that in the dark and in dark…

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GOPRO HERO 4 VIDEO CAMERAS OVERVIEW
It is no exaggeration to say that with the phrase “action camera” most people associate a very specific device. “Camcorder for extreme sports? Is it like Gou Pro, or what?…

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Sony Alpha 7R IV test: a first look
Sony ILCE-7RM4 Feature Overview Sony Alpha 7R IV became the first serial full-frame camera to break through the psychological barrier of 50 megapixels. The camera took this height with a…

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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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Choose a compact camera in 2019
Modern compact cameras are extremely convenient for traveling, hiking and simple walks in a busy city, and are able to provide high-quality images that are not inferior to the sometimes…

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Fujifilm X-T30 Mirrorless Camera Review: the best travel camera?
Fujifilm X-T30 is a mirrorless camera with an X-Trans CMOS IV sensor of APS-C format, with a resolution of 26.1 megapixels and an image processor X Processor 4. Exactly the…

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Digital movie cameras: introduction. What cameras were filmed and filmed a movie?
“Any camera in the hands of an amateur is amateur, any camera in the hands of a professional is professional.” This common phrase, popular among filmmakers, is largely true, because…

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Sony Alpha 7R IV test: a first look
Sony ILCE-7RM4 Feature Overview Sony Alpha 7R IV became the first serial full-frame camera to break through the psychological barrier of 50 megapixels. The camera took this height with a…

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