March 31, 2026
Sony got one thing badly wrong with the A7 V – but how did it happen?
Professor Newman speculates about the strange case of third-party lenses and the Sony A7 V
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Professor Bob Newman
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February 25, 2026
The real story behind the Nikon lens patent dispute with Viltrox
Professor Newman investigates the patents behind Nikon’s dispute with Viltrox
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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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December 24, 2023
Telephoto lenses for smartphones – Tech explained
Professor Newman looks into the notion of a smartphone telephoto lens and explains different design solutions
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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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December 16, 2023
Which is better: glass or plastic smartphone lenses?
Professor Newman investigates whether plastic, glass or a combination of the two is the best choice for smartphone lenses
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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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