How to Use a Light Meter and 18% Gray Card for Better Photos
ACE Camera Photography Magazine, Using a Light Meter and an 18% Gray Card for Better Photography
Many amateur photographers have never seen a gray card. Others have seen one but don't understand the significance behind gray cards or the many uses they have in photography.
The last twenty years of increasingly automated cameras has made it easier for everyone to take good pictures, but the downside of auto-everything cameras is many photographers today don't fully grasp how the light meter in their camera works, or when they need to manually intervene to get a properly exposed photograph. This article goes into detail about light meters, gray cards and all their potential uses.
It also includes a great table or cheat cheet on exposure adjustments for gray cards when using incident meters like the Gossen Scout 2.