Category » Technical Discussions

Some old picture or me carrying lenses, because the editor counts pictures in the articles but doesn't read the captions.

Lenses and Optics

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 […]

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 […]

How To's

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 […]

Metro Goldwyn Mayer

Photography

Pay Attention to the Man Behind the Curtain

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  A Reasonably Non-Geeky Guide to Lens Tests and Reviews Hardly a day goes by that on some forum somewhere a nasty argument is going on about lens testing and reviewing. (Going forward, I’m going to use the abbreviation R/Ts for Reviewers and Testers.) As with all things on the internet, these discussions tend to gravitate […]

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