Category Archives: Technical Discussions

The Ultimate Light Modifier Shoot Out and Test

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As someone who has taught off camera lighting for some years now, as well as taught dozens of workshops on the topic – I’ve always heard the same question from photographers who are using off camera lighting for the first time. “What’s the difference between ____ and ____.” When working with off camera lighting, it’s […]

The (sort of) Great 400mm Lens Shootout!

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I get asked a lot about different telephoto lenses. Is the 400 DO II better than the 400 DO? Which is better, the Tamron 150-600mm or the Sigma 150-600mm? You’ve probably noticed that I don’t answer those questions. The reason is simple. Our optical bench is designed to test lenses up to 2.5kg weight and […]

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 […]

How to Use Interview Transcripts as an Editing Tool

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I was introduced to the benefits of interview transcription a surprisingly long time after I’d started learning about documentary filmmaking. Tired of introductory-level film classes and spending hours discussing editing theory between screenings of Koyaanisqatsi, I decided to take a Journalism 101 course in the hope of gaining some actual, practical knowledge. The first thing […]

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