Lenses and Optics

A Quick Zoom Variation Demonstration

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Sometimes I put up posts basically because I find myself answering the same email over-and-over. One of the emails I get a lot is: “I want the best copy of the xxxx zoom lens.” People get irritated because my response is usually something like this: Which focal length do you want the best copy at? […]

Other

SLR Magic’s 50mm APO HyperPrime Cine T2.1 MTF Tests

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      Zeiss 50mm CP.2 and SLRMagic 50mm T2.1 About a year ago, Andrew from SLR Magic came and spent a couple of days in our lab, testing some of the SLR Magic lenses and getting input on improving the optical adjustments on their lenses. At the time Andrew made it clear their company […]

Equipment

Canon EF 11-24mm F/4 vs. Nikon 14-24mm F/2.8

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The new Canon 11-24mm f/4  is their widest ever beast of a zoom. Roger has tested it and said it’s as sharp as we had hoped, but I wanted to know how it looked in a real world comparison with the other beautifully bulbous ultra wide, the Nikon 14-24mm f/2.8.  

Lenses and Optics

Canon 11-24 f/4 L MTF Tests

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I’ll be honest. I’m pretty excited about the Canon 11-24mm f/4 L lens. I love shooting ultra-wide and the chance to shoot this wide with a rectilinear lens on a full-frame camera has me pretty excited. But I’m also very aware of how near-impossibly difficult designing a lens this wide would be, so my expectations […]

Lenses and Optics

Just the Lenses: Tamron 15-30mm f/2.8

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Our Just the Lenses posts are optical tests where we compare various lenses on the optical bench. Unlike DxO or Imatest test results, no cameras are involved, eliminating one of the major variables. It’s particularly useful when we’re looking at third-party lenses that can be used on various cameras. It’s hard to extrapolate the results of a […]

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