The main differences between the Leica III and the Leica II are:
- Full range of shutter speeds, from 1 second to 1/500 plus Z (for Zeit, time in German, shutter remains open while release button is depressed).
- Separate dial to set the slow speeds: 1 second, 1/2, 1/4, 1/8 and 1/20.
- Addition of a lug on each side to fasten the neckstrap.
- Improvement of the optical system of the rangefinder, with a magnification ratio of 1.5.
At first, the Leica III was made in black, but it was also made in chrome from serial number 116,001.
It was built from 1933 (serial number 108,651) to 1939 (serial number 343,100). Although the Leica IIIa, made in 1935, was an upgraded Leica III, the production of the Leica III continued until 1939, with approx. 76,800 units produced.
The Leica III is the first camera of the III series, an almost thirty year saga.
Advertisements in American Photography 1934 vol. 28, issue no. 1, p. 7 & no. 2, p.7
- Leica III at Ken Lyndrups Collection of photo-curios
- Opening a Screwmount Leica (III or IIIA)
- Servicing Screw Mount Leicas (PDF), at Pentax Manuals
- Leica III black by luis triguez
- Leica III at summilux.net
- Lionel's Leica screwmount cameras overview at 35mm-compact.com
- Leica III 1933, Leica III 1935, Leica III 1938 on www.collection-appareils.fr by Sylvain Halgand