The Leica Hektor 28mm f/6.5 (often described as f/6.3 in some listings) is an ultra-compact wide-angle lens for the Leica Thread Mount (LTM/L39) system, produced by Ernst Leitz Wetzlar in the 1930s. The Hektor formula is a six-element Ernostar-derived design. The very small size of this lens made it ideal for discreet documentary photography.
28mm focal length, f/6.3 maximum aperture, Leica Thread Mount (L39/LTM) screw mount, six-element Hektor formula, designed for Leica rangefinder cameras, requires 28mm viewfinder accessory.
The Leica Hektor 28mm is a collector lens representing early Leitz wide-angle optical development. The slow f/6.3 aperture is a limitation for low-light work but the optical quality is characteristic Leitz precision. A separate 28mm optical viewfinder is required for accurate composition on rangefinder cameras. Compatible with Leica M cameras via L39-to-M adapter.
Inspect all elements for haze, fungus, and coating condition. Confirm L39 thread engagement. Check aperture blades. Verify whether a matching Leitz 28mm viewfinder is included — value is notably higher with the finder.
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