It’s useful to measure the output of an Ultraviolet light source when shooting UV Fluorescence and UV Reflected photography. There are a number of UV meters on the market, very expensive. This post is about, as usual, a budget solution that goes for $150 on eBay. UV meter and filters for multispectral imaging. From left
In this blog I give tips on using Photoshop CS6 to speed up some infrared false color (IRFC) imaging editing.In a time of economic restraint, it’s important to improve productivity. This’s pretty true for cultural institutions that are usually underfunded and since I’m running my little service for art documentation, I know really well that
We do run a lot of initiatives, Stay on top of things! I noticed that I’m focusing this blog too much on technical and geeky stuff on how the scientific tools work rather than telling why we actually use the different imaging methods. So, this post explains why we use Infrared False Color with some
Visible LED lamps have an infrared component other than visible light. This infrared light gives a noise in the infrared fluorescence photography. White LED lamp emits Infrared roughly between 700 and 800. See Wikipedia; white LEDs are Phosphor-based LEDs and have an emission curve with a tail in the very close IR, see here. So, for a perfect IR
Gouache, from the Italian guazzo, is a method of painting with opaque colors ground in water and thickened with gum and honey. The Head of Conservation at The Bergen Museum of Art, MSc. Yngve Magnusson, was so kind to send me over a Winsor and Newton Color Chart of Designer’s Gouache to be tested by Technical