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Disassembly of the Canon RF 50mm f/1.2L

Geek Articles

Disassembly of the Canon RF 50mm f1.2L

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It is the best of lenses, it is the worst of lenses, it is the lens of perfection, it is the lens of complexity, it is the lens of new technology, it may be the lens of non-repairability.  A little while ago, Canon released the computer generated MTF charts for the Canon RF 50mm f/1.2 lens. Despite my ambivalence about […]

Lens Testing For Sharpness

Geek Articles

Using Rapid MTF Testing – How We Test & Monitor Our Lenses

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WARNING! THIS IS A GEEK LEVEL III ARTICLE.  It’s about testing, not image making. If you’re into geeky testing stuff, you’ll probably find this fascinating. If you’re not into geeky stuff but are into how lenses change over time, you’ll find skimming it worthwhile. If you’re a Fanboy or Fangirl, there’s nothing here for you; there are […]

Canon EOS R Teardown

Equipment

Teardown of the Canon EOS R Mirrorless Camera

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I’ve wanted to look inside the new Canon and Nikon mirrorless cameras since the moment they were announced, so I’m probably more excited about this than you guys are. I’m really not sure what to expect. Early on, when we took apart a Sony A7R, we were struck by how clean and straightforward mirrorless cameras […]

How to MTF Test a Lens

Geek Articles

Developing a Rapid MTF Test for Photo and Video Lenses

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. . . Or What I Did for the Last Year Instead of Having a Life. Nearly a decade ago, I started testing lenses. A few years later, after I complained about a manufacturer’s claiming an awful lens was in spec, an engineer patted me on the head and told me “you really don’t have the […]

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