Photo Art from Science

How to test your lens for centering (or decentering).

Understanding how you can get worse resolution measurements from an FX sensor than a DX sensor.

Most consumer cameras don’t offer focus calibration (auto-focus fine-tune). Resolution comparisons with/without calibration tell the tale.

Set your Nikon camera to manual exposure, your external flash to “Auto FP” mode, and separately control the background and subject lighting.

If you still have a phone with IR, it can remotely control most Nikons.

Turn off VR at high shutter speed? I show you how to decide for yourself.

What can you expect from a lens when you change to a higher resolution camera? Here are some answers.

Flash FP Mode This article discusses the Nikon FP flash mode, which is often derided by photographers as ‘beneath contempt’. That’s not...

The exiftool program lets you extract all of the data out of your photographs into a text file by a simple drag-and-drop operation.

Sigma Optimization Pro and the USB dock (looks like a hockey puck) let you completely customize your lens. See how.