So, I know that incident meters measure the light falling on a subject, but I would like to know how they arrive at an exposure recommendation. I have always used center weighted reflected light meters in my cameras and know that I can measure an area of the subject and adjust upward or downward depending on whether I'm exposing for the highlights or the shadows. I am in a position where I need a meter to use with an unmetered camera and it seems that most affordable hand held meters are incident meters. So, what does the reading tell you? Does it simply tell you what exposure is needed for a middle gray based on the falling light? Also, any recommendations for something under $200, new or used, and not too large? Thanks.