Category » Lenses and Optics

macro

Equipment

More PhotoGeekery: Finite Conjugate MTF Bench Tests for Macro Lenses

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For the last several years we’ve talked about the fact that lens performance can vary with focusing distance. Our optical bench tests at infinity. Computerized target analysis (Imatest and DxO) tests at close distances. But when the results of target analysis and bench tests differ it’s hard to decide if the difference is because of different testing […]

Sony Lenses

Equipment

Sony FE Planar T 50mm f/1.4 ZA MTF and Variance Testing

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  OK, you probably know I don’t like ultra-long lens names. I don’t like lenses that are expensive (who does?). So when you throw out a 50mm lens with a long name, like the Sony FE Planar T* 50mm f/1.4 ZA, and price it at $1,500 I’m a bit predisposed not to like it. Seriously, […]

Leica-Lenses-Sony-Body-1

Equipment

Guide to Leica Wide Angle Lenses on Sony a7 Series Bodies

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It’s been known for some time that wide angle M mount lenses have issues on Sony mirrorless cameras because of the way the sensors are designed, but there’s never been a very good list of what lenses work best, much less a visual reference to see how bad things can really be. So I took […]

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Equipment

The Sony FE Lenses MTF and Variance Summary

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We’ve put all of this information out in other articles, but it was as we finished each one so it’s become scattered about. I wanted to simply put up all of our MTF and variance curves for Sony FE lenses in one place so you wouldn’t have to hunt and search for different articles to […]

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