Vintage Leica Summaron 35mm f/3.5 in L39 (mislabelled as Zeiss), classic screw-mount wide-angle with collector value.
The 35mm f/3.5 Summaron (L39) is a wide-angle prime for the Leica Thread Mount (M39 screw). The Summaron 35mm f/3.5 is a Leica-designed wide prime for LTM cameras produced from the 1950s. Note: canonical name has 'Zeiss' prefix — verify actual manufacture. Leica Thread Mount.
f/3.5 maximum aperture. 35mm focal length (full-frame wide angle). LTM (Leica Thread Mount, M39 screw). Manual focus. Leica Thread Mount.
The Summaron 35mm f/3.5 is a classic LTM wide prime. The 'Summaron' designation was used by Leica for their 35mm lenses in the rangefinder era. Adapts to Leica M and modern mirrorless via M39 adapter.
On the used market the 35mm f/3.5 Summaron L39 is a classic LTM wide prime. Condition checks: front element, LTM thread. Leica Thread Mount (M39/LTM).