Category » Technical Discussions

Technical Discussions

Sensor Size Matters – Part 1

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We get a lot of questions about sensor sizes and crop factors.  Most people know the difference between a standard (APS-C) crop sensor and a full-frame sensor. Not many, though, know how much smaller a 2/3” sensor is than a 4/3 sensor, and fewer still the difference between those and a 1/1.8” sensor. Plus Canon […]

Resolution Tests

The Great 50mm Shootout

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Every so often the Universe realizes I’m getting a little cocky and sends someone to ask me a simple question I can’t answer.  It happened again the other day. Michael Plumridge and Peter Lik asked Tyler what the sharpest 50mm lens was. They were shooting on Red Epics with adapters so neither brand, mount, nor price […]

Lenses and Optics

Stop it Down. Just a Bit.

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If you read much that I write, you know I love’s me some wide-aperture prime lenses. I like the narrow depth of field that isolates my subject, and the ability to shoot in low light. More than anything else, though, I love a nice sharp lens with superb resolution and excellent contrast. A lot of people […]

Lenses and Optics

Are Zooms Always Sharper at One Extreme or the Other?

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There is a statement often repeated about zoom lenses, which I have assumed to be generally true, or at least historically true. “All zooms are sharper at one end than the other.” I also hear a lot of people saying they bought Zoom A because it’s sharper than Zoom B. Is that sharper everywhere? Just […]

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