I shoot with a rangefinder because I am not stuck concentrating looking through what the lens is seeing but watching the elements in the scene outside that field of view of EVF or SLR/DSLR. Thart way I can better see what is coming into or going out of the frame. Reacting to the moment.
Meyerwitz on the subject about 1:20 in. The enitre piece is good though.
