Recently there are a few threads about technique in focusing Leica camera, such as focus at hyperfocal point etc. Let me introduce Harold Merklinger's method of focusing. In his opionion, the common practice of focusing at hyperfocal point is actually not as good as simply set the lens at infinity. He wrote a lengthy technical book "The INs and OUTs of FOCUS" about his technique. Harold Merkinger used Leica M3 with 50mm dual range Summicron for many of the illustrations in the book For an introduction to his focusing method, see Harold Merklinger Focusing Method For scenic photos, I usually set my Leica/Rollei/Minox camera to infinity and shoot.