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“Fifty dollars” for 4495 dollars. Presents lens Leica APO-Summicron-SL 50 f/2 ASPH. to mount the L-Mount

Leica, in her own words, “set an even higher standard for the family Summicron-SL”, releasing the lens Leica APO-Summicron-SL 50 f/2 ASPH. to mount the L-Mount. As stated, a standard full-frame lens suitable for travel, Studio, architecture and landscape, portrait and documentary photography.

«Полтинник» за 4495 долларов. Представлен объектив Leica APO-Summicron-SL 50 f/2 ASPH. с креплением L-Mount

In the description of the new items marked high image quality, the use of three aspherical elements and eight glass elements with anomalous partial dispersion to reduce chromatic aberrations. For fast focusing lens has two stepper actuator so that the entire focusing range can be completed in just 250 milliseconds. Manual focus is done using the ring magnet and the sensor. The sensor detects the magnetic field changes when you turn the ring and transmits data for the operation of the actuator. According to the manufacturer, this approach provides a “faster and more accurate manual focus with nice damping and weighting”.

Technical specifications lens Leica APO-Summicron-SL 50 f/2 ASPH.:

  • Focal length — 50 mm;
  • Angle field of view — up to 47.2°;
  • Aperture — f/2.0-f/22;
  • The optical design is 12 elements in 10 groups;
  • Minimum focusing distance — 0.35 m;
  • Maximum magnification — 1:5;
  • Installation of filter diameter — 67 mm;
  • A diameter of 73 mm;
  • Length 102 mm;
  • The mass is 740 g.

The lens is protected from atmospheric influences. It is worth 4495 dollars. Sales have already begun.

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Photography

Leica opens Silicon valley center for “computational imaging”

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CEO of Leica Harsh Mathias (Matthias Harsch) announced that Leica will create a “competence centre in computational imaging in California’s Silicon valley”.

Leica откроет в Кремниевой долине центр «вычислительной визуализации»

“After the transition from analog to digital photography in early 2000, 19 years later, we are faced with the second digital revolution in the industry of cameras and optics” — leads the source words Harsha.

According to the CEO of the company, is the industry legend, “computer visualization”, that is, the image acquisition indirectly by using algorithms that significantly affects the picture and in the future this influence will increase. Thus, creating a new research center, Leica provides a place in that future.

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Photography

Became known, the Ricoh will celebrate the 100th anniversary of Pentax

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Some time ago, Ricoh has confirmed that this fall will release a new camera. It’s a little weird, as I was able to time the release to date and thus provide additional interest to the new product. The fact that on the 27th of November marks the 100th anniversary of the marches Pentax is now Ricoh.

Стало известно, чем Ricoh отметит 100-летие Pentax

However, no release of a commemorative products will not do. Though fans of the brand “new” is unlikely to please. According to the source, Ricoh will celebrate the 100th anniversary of Pentax release plugs into the hot Shoe O-HC171 with appropriate engraving.

Стало известно, чем Ricoh отметит 100-летие Pentax

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Photography

Camera Sony a7R IV also is “eating the stars”

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The source, before carrying out such a test of the camera Sony a7R III, reviewed the work of the camera Sony a7R IV terms of use of this device for astrophotometry. He came to the conclusion that the Sony a7R IV also is “eating the stars”. The reason would be the algorithm of noise reduction at high shutter speeds, which does not distinguish the stars from the noise.

Камера Sony a7R IV тоже «ест звезды»

The tests showed that the algorithm is activated when the shutter speed is equal to or exceeds the 3.2 s. This is clearly seen on charts: the first corresponds to a short exposure, which is long.

Камера Sony a7R IV тоже «ест звезды»
Камера Sony a7R IV тоже «ест звезды»

The horizontal axis is spatial frequency, related to the sampling frequency of the camera and on the vertical axis — the values of noise. In the absence of noise reduction graph tends to a horizontal line. Treatment is especially pronounced in the blue channel (the final chart). Presumably, this is due to the use of part of the pixels for phase focusing.

Камера Sony a7R IV тоже «ест звезды»

The source said that in the Sony a7R III noise reduction began to manifest itself upon exposure of 4 seconds.

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Code: JOLLYGOOD. SHUTTERFLY OFFER: Offer expires December 14, 2017 (11:59 P.M. PT). Offer is good for 50% off regular-priced first 20-standard finish page hard photo cover photo books and 40% off all other regular-priced photo book cover types, additional photo book pages and other products not previously listed (so

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