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Category Archives: 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 [...]

Just the Lenses: Canon and Nikon Mount 35mm f/1.4s

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As I discussed in the last post, it's impossible to accurately compare lenses from different mounts using any form of computerized target analysis testing (methods like DxO or Imatest). Target analysis tests an entire system (camera and lens). That's a very practical thing, of course, but it has some limitations. Directly comparing the lenses on [...]

Just The Lenses: Canon vs Nikon Zooms at 70mm

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It's impossible to accurately compare lenses from different mounts using any form of Computerized Target Analysis testing (methods like DxO or Imatest). Target analysis tests an entire system (camera and lens). People try to, of course, but it's not accurate since you always have the added variables of camera sensor, microlenses, in-camera image processing, etc. [...]