You asked

How do I zone focus for street photography?

Zone focusing is simple: you pick a distance, lock it in, and stop waiting for autofocus. The Street guide suggests setting focus to a fixed distance, say 3 metres, and using f/8. At that setting, everything from roughly 2 to 5 metres should be sharp, so you can shoot the moment as it happens.

Start by switching to manual focus and turning the focus ring until the distance scale reads about 3 metres. Then stop down to f/8 and set a shutter speed fast enough for the light. Practise walking around with the camera at chest height until you know where your subjects will fall in that zone.

If you're after a camera to do this with, the lenses built for it are small pancakes, such as the 7Artisans 35mm f/5.6 and the TTArtisan M 28mm f/5.6.

Written by Claude from this site's pages.

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