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Canon RF800mm F56 L IS USM and RF1200mm F8 L Canon RF800mm F56 L IS USM and RF1200mm F8 L

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Canon RF800mm F5.6 L IS USM and RF1200mm F8 L IS USM lenses introduced

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To mark the 35th anniversary of the Canon EOS line, Canon has announced two RF mount super telephoto lenses: the RF800mm F5.6 L IS USM and the RF1200mm F8 L IS USM. Although the names of these lenses resemble their EF mount counterparts, they differ in optical resolution and weigh slightly less.

Canon RF800mm F5.6 L IS USM and RF1200mm F8 L IS USM lenses introduced

In the description of new products, the manufacturer notes that the RF1200mm F8 L IS USM model has the longest focal length among RF mount lenses. Common features of the new lenses include Super Spectra Coating (SSC) and Air Sphere Coating (ASC) to help minimize the risk of flare and other artifacts. Both lenses are compatible with RF1.4x and RF2x teleconverters. It is possible to install filters with a diameter of 52 mm into the lens, for which there is a special slot.

Canon RF800mm F5.6 L IS USM and RF1200mm F8 L IS USM lenses introduced

The lenses provide for memorizing two focus positions with the ability to quickly switch between them. The lenses are equipped with an image stabilization function. Three stabilization modes are available, and its effectiveness is declared equal to four exposure levels (according to the CIPA rating).

Canon RF800mm F5.6 L IS USM lens technical data:

  • focal length – 800 mm;
  • aperture – f / 5.6-64;
  • optical design – 26 elements in 18 groups, including 2 fluorite elements, a Super UD element and a UD element;
  • minimum focusing distance – 2.6 m;
  • maximum magnification – 0.34x;
  • number of aperture blades – 9;
  • focusing – automatic and manual;
  • diameter – 163 mm;
  • length – 432 mm;
  • weight – 3140 g.

The RF 800mm F5.6 L IS USM and RF 1200mm F8 L IS USM lenses will be available in late May 2022 for $16,999 and $19,999, respectively.

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Phones

The $85 Redmi 10A was a hit in China during the big 618 sale. It outperformed the iPhone 14 Pro and iPhone 14 Pro Max

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The 85 Redmi 10A was a hit in China during

There is a big 618 summer sale going on in China right now, and there are periodic reports of the hottest items on different platforms. So, if we talk about the largest marketplace JD.com, then in the category of smartphones there is no equal Redmi 10A – this affordable model at $ 85 has surpassed the iPhone 14 Pro and iPhone 14 Pro Max in popularity. Moreover, Redmi 10A on JD.com simply sold out.

The $85 Redmi 10A was a hit in China during the big 618 sale. It outperformed the iPhone 14 Pro and iPhone 14 Pro Max

The $85 Redmi 10A was a hit in China during the big 618 sale. It outperformed the iPhone 14 Pro and iPhone 14 Pro Max

Redmi 10A is on the other side of the parameters and consumer qualities from the iPhone 14 Pro. The device is built on SoC MediaTek Helio G25, equipped with a camera with sensors with a resolution of 13 and 5 megapixels, an IPS screen with a diagonal of 6.53 inches and a resolution of 1600 x 820 pixels, a 5000 mAh battery that provides up to 35 days of battery life in standby mode .

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Components

Some AMD processors may freeze after 1044 days of continuous operation

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Some AMD processors may freeze after 1044 days of continuous

AMD Epyc processors of the Rome generation (the second generation of Epyc) revealed one curious feature. It lies in the fact that such a CPU can freeze after 1044 days of continuous operation.

Some AMD processors may freeze after 1044 days of continuous operation

Photo: Fritchenz Frenz

This feature means that owners of servers based on such CPUs may need to reboot the server before the specified time in order to avoid system freezes.

The problem is related to the fact that the CPU core cannot wake up from the CC6 sleep state. That being said, AMD states that the crash time may vary depending on the spread spectrum and REFCLK frequency. The nature of the problem is of a hardware nature, so, unfortunately, it will not be possible to fix it.

In addition to rebooting, there is a second method to avoid freezing: disable CC6 sleep mode.

In general, in most cases, this problem will not affect server owners, since maintenance and installation of security updates usually occur much more often, including requiring a reboot. However, in case someone uses the Linux hot fix feature to upgrade without rebooting, they may encounter the above problem.

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The updated eighth generation Volkswagen Golf was first shown without camouflage. He has a huge “TV” on the front

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The updated eighth generation Volkswagen Golf was first shown without

It’s no secret that Volkswagen is preparing an updated eighth-generation Golf – it should debut at the end of this year (or early next) and will be sold unchanged until 2028, after which it will go down in history. And now, for the first time, the updated Golf (and even in the plug-in hybrid version) was captured without camouflage – it winds kilometers somewhere on the roads of Germany.

The updated eighth generation Volkswagen Golf was first shown without camouflage.  He has a huge

Since we are talking about a mid-term update, there are no special innovations in the exterior. The car will get narrower headlights, a slightly modified front bumper, taillights with new graphics.

The updated eighth generation Volkswagen Golf was first shown without camouflage.  He has a huge

The updated eighth generation Volkswagen Golf was first shown without camouflage.  He has a huge

But in the cabin of such a car (Golf eHybrid is one of the top versions of the model) a media system with a huge screen is installed. The company does not officially name the size of the diagonal, but, apparently, a 15-inch screen is installed as in the ID electric liftback. 7. But if for a large ID. 7 (we recall that it is the electric successor to the Passat) such a display is still somehow appropriate, but for a Golf it looks very large.

The updated eighth generation Volkswagen Golf was first shown without camouflage.  He has a huge

The updated eighth generation Volkswagen Golf was first shown without camouflage.  He has a huge
The updated eighth generation Volkswagen Golf was first shown without camouflage.  He has a huge

It is also noted that the touchpads on the steering wheel, which Golf owners complained about, have been replaced with conventional mechanical buttons.

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