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HD Pentax-D FA 21mmF2.4ED Limited DC WR lens introduced

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As expected, Ricoh Imaging has unveiled the HD Pentax-D FA 21mmF2.4ED Limited DC WR lens, preliminary information on which appeared the day before.

According to the manufacturer, this is the first D FA lens to cover a full frame of a DSLR and is designed to “optimize the visual quality” of digital images.

HD Pentax-D FA 21mmF2.4ED Limited DC WR lens introduced

The manufacturer notes the presence of four ED elements and three Super ED elements in the optical design of the lens, which helped to reduce chromatic distortion. In addition, due to the use of a concave meniscus lens of a large diameter, a biconvex aspherical lens made of molded glass and a glass element with a high refractive index in the first group of elements, it was possible to reduce the size of the lens and obtain a sharp image throughout the frame. A multi-layer coating completes the picture, reducing the risk of glare and other artifacts in difficult lighting conditions.

Lens specifications HD Pentax-D FA 21mmF2.4ED Limited DC WR:

  • focal length – 21 mm (EGF 32 mm);
  • aperture – f / 2.4-f / 22;
  • angle of view – 92 °;
  • optical design – 11 elements in 8 groups;
  • the number of aperture blades – 8;
  • the minimum focusing distance is 0.18 m;
  • maximum magnification – 0.26x;
  • filter installation diameter – 67 mm;
  • diameter – 74 mm;
  • length – 89 mm;
  • weight – 416 g.

The lens is weatherproof. Its sales should begin in November. In Europe, the lens will cost 1499 euros.

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Four iQOO smartphones will receive Android 12 in December

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The iQOO brand has revealed Android 12 release dates for a number of its models. True, we are not yet talking about the final version of Android 12 – it will have to wait longer.

IQOO 7, iQOO 7 Legend, iQOO Z3 and iQOO Z5 users will receive the Android 12 beta at the end of the year – at the end of December. And at the end of March 2022, the beta version of Android 12 will be released for iQOO 3.

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After Bitcoin began to fall, Ethereum was still holding, but its rate had already gone down too, dropping below the psychological mark of $ 4,000. Analysts believe that such a fall in cryptocurrencies is due to their sell-off on the part of investors – they are fixing profits against the backdrop of a strong growth in value that has been observed since the end of September. This means that after the current correction, Bitcoin may rush to new heights, but whether altcoins will follow it is a big question.

Not a trace remained of $ 66,000.  Bitcoin fell, followed by Ethereum

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