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DxOMark is announcing their Sigma 50mm f1.4 Art lens findings today. According to what they did in the lab, the company concludes that the lens is outperformed by the 55mm f1.4 Zeiss Otus lens only in terms of light transmission, distortion control, and vignetting control. Otherwise, they’re basically exactly spot on when it comes to sharpness numbers. The even more fascinating news is that they both wipe the floor with Canon’s f1.2 L offering–and hopefully will dispel the myth that someone should only go for all L glass when building their Canon kit.

The company didn’t test the lens on the Nikon D800E and we figure that this is mostly because the units going around right now are Canon mount.

More findings are after the jump.

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Chris GampatThe Phoblographer Sigma 50mm f1.4 lenses (3 of 3)ISO 2001-60 sec at f - 4.0

Sigma recently updated their 50mm f1.4 lens to include not only the Art branding badge, but also a totally new look to the lens. The new Art offering joins the 35mm f1.4 as another prime for DSLRs under the new Global Vision that the company is touting right now. Many folks own the older Sigma 50mm f1.4, and with the release of the new one you might be wondering if it’s worth an upgrade or not.

In our real world tests, we explore the differences.

Editor’s Note: Check out our first sample imagesfull review, and comparison posts against the 35mm f1.4 and 50mm f1.4 version 1.

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Today, DxOMark released new findings and a report on the Sony A6000 announced a little while back. According to their findings, it seems to be outdoing pretty much every other new camera on the market with the exception of the Nikon D5300 and D3300. Sony’s new flagship APS-C E mount camera has a 24.3MP APS-C sensor at its heart. And while many may still say that that is way too many megapixels for a small sensor, the results are surely in.

However, during our briefing with Sony, what they were really pushing was the autofocus–which is super fast and utilizes phase detection.

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Phase One IQ250

Photographer Tim Kemple is no stranger to the Phoblographer. We’ve interviewed him before about his work in the great outdoors and his photography in general. But when we heard that he got to play with the new back, we were extremely curious to talk to him about it.

Not only was he able to tell us a bit more about the experience, but he was kind enough to provide crop examples of the new back against the Nikon D800.

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The test lab DxOMark released their findings today on the Sigma 24-105mm f4 lens. Overall, they seem to give it a lot of praise. But where it’s really taking the championship is with the comparisons. As a former professional photographer that relied heavily on his 24-105mm f4 L IS, I can say with experience that I used to send it in for calibration a couple of times a year. Sigma’s option seems to be a killer one though.

What’s even more astonishing is the T rating. The Canon lens is rated at T5.1 while Sigma is at T4.2. That translates into a heck of a lot more light. For the unknowing, a T stop rating is the exact light transmission rating, while an F stop is only really an approximation–at least that’s the simple way of putting it. However, Canon’s Chromatic Aberration seems better controlled.

In real life, it’s still the photographer that creates the images and having a vision for the final result is key. But it can also affect your workflow, histograms, etc. It really just means a bit more brightening with Canon’s lens than you normally would on top of more sharpening.

The lens is only slightly beaten by Nikon’s version, and that could be because it was tested on a D800.

Then when you consider the more affordable price of the Sigma 24-105mm f4 lens, then it becomes an even more attractive option. We’re working on our Sigma 24-105mm f4 review now, so stay tuned for our findings.

Chris Gampat The Phoblographer Micro Four Thirds High ISO comparison (4 of 4)ISO 1251-30 sec at f - 5.6

Three of the best Micro Four Thirds cameras currently out on the market all have been noted to exhibit exceptional high ISO image quality. Those three cameras are the Panasonic GH3, Olympus OMD EM5, and the Olympus EP5. Statements around the web have claimed that the cameras have the same sensor, but the firmware inside of these cameras is really what helps to determine the final image quality as well.

And in a very quick and super informal test, we decided to put the three up against one another.


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