Photo Art from Science

How does the light level affect your len autofocus speed? Get some real numbers for typical lenses.

Tips on getting your lens into positions your eyes can never go. Show the world from a different vantage point.

Does your lens eventually stop seeing improvement with higher resolution sensors? Real measurements show what happens.

You may be surprised to learn that you can't update a new Lightroom6 install any more. This procedure may help.

Get new lens profiles even after Adobe has stopped support for your standalone Lightroom.

Contrast-detect focus is supposed to be superior to phase-detect focus accuracy, right? Let's reality-test this notion.

Old Nikkor zoom from the 1990's is better than you'd expect. Get some real measurement results on how good.

This lens harkens back to the early era of Nikon zoom lenses, when everyone was still using 35mm film. It was manufactured from 1989...

How to see the zone of what's in focus with your lens when it isn't a flat field.

Lenses don't always focus different colors equally. I show you how to see and measure lens resolution in the red, green, and blue channels.