Originally Posted by Art Adams

I didn’t trust incident meters at all. They only told me how much light was falling on an object but didn’t tell me anything about how bright the object itself was. I felt like I was working in the dark with an incident meter, and I held others in disdain when I saw others using incident meters to average exposures across multiple light sources. In my head I thought, “You’re averaging light sources! How can you possible know what’s going on with any single light?"