use, analog: Leica M2 (1969) w/Summicron f2/50; Summaron f2.8/35; Elmar f2.8/50; Elmarit f2.8/90, for almost exclusive b/w;

Rollei 35, the smallest ever built mechanically working 35 mm camera.

use, digital: Leica d-lux 4 (also used as light meter for the M2 & Rollei, although I have the original & one slightly younger Leica-meter);

iPhone 3gs (when no better camera in pocket or bag)