The Leica M10 was released in January 2017 as the first digital M to return to the slim body depth of the film-era cameras, replacing the M (Typ 240) and dropping video entirely to focus the camera on stills rangefinder photography.
It carries a 24MP full-frame CMOS sensor, Maestro II processor, ISO 100-50000 set via a dedicated left-shoulder dial, a 0.73x rangefinder with wider eye relief than the Typ 240, 3in 1,036k-dot LCD, and a body 4mm slimmer than its predecessor at 660g with battery. Shutter tops out at 1/4000s.
The M10's significance is handling: film-M dimensions, the physical ISO dial and the improved finder made it the digital M that felt like an MP. Later P, R and D variants added quiet shutter, 40MP resolution and screen-free operation on the same platform.
Used M10 bodies are plentiful and the most affordable entry to the current-generation M platform. Verify rangefinder vertical and horizontal alignment, check the top plate engraving and dials for wear, confirm battery health (BP-SCL5), and factor a recent Leica service into higher asking prices.