Diffraction Calculator Updates To make it easier to use, I've made a number of updates to the Visible Diffraction Calculator for Digital Cameras. Recommended ƒ-stops At a glance, for your combination of camera and infrared filter, the calculator now shows: The ƒ-stop that is Safe to avoid diffraction The ƒ-stop that you can use with Caution as it will produce very mild diffraction The ƒ-stop that you should Avoid to steer clear of visible diffraction Camera details The pixel pitch,...

Infrared Lens Database Updates I've made a number of updates the Infrared Lens Database. 169 new lenses have been added! There are now over 330 lenses listed. This is all possible thanks to your submissions! 13 new lens mounts have been added. There are now 31 lens mounts represented, including multiple new medium format mounts such as Bronica PG, Pentax 645, Pentax 67 (15 lenses), and three Mamiya medium format systems. Many mounts now have a large number of lenses listed, such as Fujifilm X...

Infrared Travel Camera I converted a compact fixed-lens camera into an infrared travel camera and built a simple grab-and-go kit around it. In this video, I’ll show what’s in my bag (camera, adapters, filters, grip, and accessories), why I chose the camera, and how I narrowed it down to a small set of filters, including the Kolari IR Chrome, plus one for color infrared and one for monochrome infrared. I’ll also walk through the two biggest quirks, hot spots and distortion, and the quick...