Category » Technical Discussions

Sigma 24-70mm Art Series Review

Lenses and Optics

Sigma 24-70mm f/2.8 DG OS HSM Art Sharpness Tests


Sigma has been on an incredible run these last 5 years, releasing one amazingly sharp lens after another. They’ve made lenses no one has ever tried before and not only succeeded, they made them amazingly good on the first try. Their quality control has become as good as anyone’s, better than most. And their repair […]

Ultra High Resolution

Geek Articles

Experiments For Ultra High Resolution Camera Sensors


GEEK ALERT!! Let’s be absolutely clear; this is not a useful article in regards to your technique. It won’t help your photography or videography become better. It won’t help you choose equipment any time in the next couple of years. It won’t provide any fodder for your next Forum War. It’s just a geek article that may interest […]

New Items

Sony FE 12-24mm f/4 G MTF Tests


I usually don’t do any prerelease testing. Mostly that’s because manufacturers will send one prerelease copy to a reviewer. If you tell them you won’t test less than ten copies they look at you like, well, I don’t know what they look at you like because I only communicate by email. But they say nope; you […]

Photography Lighting 101

Geek Articles

Simplifying the Complexities of Lighting in Photography


As someone who teaches workshops tailored to lighting, I’m always reminded how many people have a gross misunderstanding of how light travels and is used within photography. And while I usually start my workshops with an open lesson on the reality of how light functions. I’m frequently reminded, how, even the most experienced photographers, don’t […]

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