Luthiers can use Schilbach’s new Metamerism test card to check the suitability of light sources for detailed work. If the card’s light indicator strip D50 reveals just one uniform colour when placed under a light, that light source is acceptable.
If various colours appear, it is not. The card comes in a cardboard slip case and measures 86mm by 54mm.
Schilbach Metamerism light test card from €7.14 email shop@schilbach.net
web www.shop-schilbach.net