Category Archives: Lenses and Optics

The Ultimate 50mm Lens Comparison

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I want to share with you guys a personal lens purchasing journey that I’ve been on for awhile now. My favorite genre of photography is travel photography; I love capturing landscapes, on location portraits, action sports, and general tourist stuff. It’s a very broad topic, and I want my camera gear to be as versatile […]

Fun with Field of Focus Part 1

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I’ve mentioned in some other posts that our optical tools can do a lot more than just test a lens’ MTF. For most of the last two years, though, testing MTF is what we’ve been doing. We may not seem all that busy, but we’ve assembled what is probably the world’s largest database of current camera lenses; […]

The (sort of) Great 400mm Lens Shootout!

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I get asked a lot about different telephoto lenses. Is the 400 DO II better than the 400 DO? Which is better, the Tamron 150-600mm or the Sigma 150-600mm? You’ve probably noticed that I don’t answer those questions. The reason is simple. Our optical bench is designed to test lenses up to 2.5kg weight and […]

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