Sigma Art Series 14-24mm

Equipment

MTF Tests for the Sigma 14-24mm f2.8 Art Series Lens

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Most of you know I’m a big fan of Sigma’s Art prime lenses. They give superior optics at excellent prices just about every damn time. I’ve been more mixed in my opinions of Sigma’s Art zoom lenses. I thought the Sigma 24-105mm f/4 Art was the best 24-105mm I’ve ever tested (and I hate testing 24-105s). The […]

Sigma 70mm f/2.8 Macro Art Series Reviewed

Equipment

Review of the Sigma 70mm f/2.8 Art Series Macro Lens

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I love my Canon 100mm f/2.8L Macro lens. Since I got it six months ago from Lens Authority (after renting it half a dozen times for projects), it hasn’t really left my camera body. Though like most macro lenses I’ve used, it’s a bit slow to focus, and can be a little fickle when using […]

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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