March 17, 2025
Autofocus: DSLR vs Mirrorless Theory and Practice
Professor Bob Newman on why focusing techniques vary depending on whether you’re using a DSLR or mirrorless
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Professor Bob Newman
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December 18, 2023
The big Exposure Triangle mix-up and why it’s wrong
What exactly is the exposure triangle? Seems like there isn’t a single consensus on this subject, Professor Newman investigates the issue
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November 13, 2023
How does the Sony A9 III global shutter work?
How does the Sony A9 III's global shutter work, and why is its lowest ISO limited to ISO 250? Professor Robert Newman explains all
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August 17, 2023
How does LiveND work on Olympus cameras?
Professor Bob Newman explains how the Live ND Filter function for simulating long exposures with Olympus and OM System cameras works
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July 9, 2023
Why are new camera models so like the old ones?
New camera models seem only slightly different to older models, so what can we hope for in a new camera? It comes down to ‘platforms’...
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June 30, 2023
Are smaller pixels worse? Sensor technology myths explained
Are smaller pixels worse? Professor Newman explains why ‘quantum efficiency’ matters in the arguments about pixel density
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May 21, 2023
Testing Lenses and Cameras – Why Metrics Don’t Matter
Professor Newman reflects on the drawbacks of assessing cameras and lenses using simplified metrics such as MTF50 and Dynamic Range
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March 22, 2023
Opinion: why the Voigtländer 50mm f/1.0 Nokton lens is so special
Professor Bob Newman reveals the many attractions of the Voigtländer 50mm f/1.0 Nokton Aspherical lens – and why it could be a real game changer for the money
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July 4, 2016
Genre and photography
Professor Bob Newman introduces the idea of genre theory and photography.