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Lens Test of the 70-200mm f/4IS II

Lenses and Optics

MTF Tests for the Canon 70-200mm f/4 IS II Lens

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Back in the day, and it was way back, my first “L” lens was the Canon 70-200mm f/4L, which I chose primarily because it was a bit sharper and a lot cheaper than the 70-200mm f/4L IS. I moved on years ago. Those lenses were good back then, and perhaps adequate for quite a while, but […]

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 […]

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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