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SLR camera Canon EOS 850D

17.02.2020

Canon has introduced a digital SLR camera Canon EOS 850D.

This camera uses a 24,1MP APS-C image sensor and a DIGIC 8 processor. Addressing the camera to "hobbyists", the manufacturer notes that the 220-pixel RGB + IR metering sensor and the autofocus system with intelligent tracking (iTR) borrowed from Canon's professional line of cameras. Features of the 000 cross-point autofocus system, which uses Dual Pixel CMOS AF technology, include the function of face detection and eye detection in the frame. There are 45 focus points available when shooting with Live View in auto mode, and 143 points in manual mode.

The sensitivity range is ISO 100-25 600. It expands upwards to ISO 51 200. The minimum shutter speed is 1/4000 s.

The camera allows continuous shooting at 7 fps with sighting through the viewfinder and up to 7,5 fps in Live View mode. The screen used for Live View is movable and touch sensitive.

The user can shoot 4K video at a frame rate of up to 25 fps and shoot Full HD video at a frequency of up to 60 fps. The camera has an image stabilization system in five degrees of freedom.

The camera is equipped with a flash with a guide number of 12, Wi-Fi, Bluetooth and USB interfaces, an SD, SDHC and SDXC card slot (supports compatible UHS speed class 1 cards)

The Canon EOS 850D is now available for pre-order. It costs $750. A kit with an EF-S 18-55mm F4-5.6 IS STM lens is priced at $900. Sales will start in April.

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Wheelbarrow with legs 21.10.2002

As you know, the great French mathematician Blaise Pascal invented the usual wheelbarrow with one wheel. But the American engineer, a specialist in robots, Homayun Kazeruni offers a wheelbarrow with two legs.

The legs are driven by a gasoline engine from a lawn mower, a person can only support the handles and direct the movement. The wheelbarrow can move briskly over rough terrain and stairs, carrying a load of up to 45 kilograms. The prototype cost $10, but Kazeruni promises that a mass-production sample, which should be ready in about a year, will cost less.

It is assumed that such a wheelbarrow will be useful, for example, to rescuers working on the ruins of houses after an earthquake.

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