Category Archives: Teardowns and Disassembly

24-70mm f/2.8 Lens Teardown Comparison

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Warning: This is strictly a Geek article. If you don't like looking at lenses' insides, there's absolutely nothing of interest for you here.  We've been doing a lot of teardowns lately and I've made comments like "well thought out" or "carefully engineered." Several people have asked me to show them some comparisons so they can [...]

Optically Adjusting a Lens

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I write a lot about the fact that every copy of a lens is slightly different than every other copy. Now don't get me wrong: I'm talking slight differences that are barely detectable, not good or bad. Even when things appear to be in the "bad lens" area, they usually aren't. The majority of the [...]