Ernst Leitz Wetzlar Hektor 135mm f/4.5 | S/N: 1407986

Ernst Leitz GmbH Wetzlar Hektor 135mm f/4.5 Telephoto Prime Lens - Good Condition | Classic Vintage Leica Rangefinder Optic Featuring 4-Element Design, 15-Blade Circular Diaphragm, and Universal M39 Leica Thread Mount

Introductory Paragraph The Ernst Leitz GmbH Wetzlar Hektor 135mm f/4.5 is a legendary vintage manual focus telephoto prime lens engineered and manufactured by the prestigious Ernst Leitz company in Wetzlar, Germany. Introduced as a premier long-focal-length solution for the classic Leica rangefinder ecosystem, this specific copy features the universal M39 Leica Thread Mount (LTM) configuration. Built with an incredibly robust all-metal barrel and an intricate 15-blade circular aperture layout, this highly scannable Leitz lens delivers a uniquely artistic, painterly rendering profile defined by smooth contrast and gentle highlight roll-off. It stands out as an exceptionally satisfying, historically rich choice for analog rangefinder purists shooting vintage Leica thread-mount bodies and modern digital mirrorless creators looking to adapt true mid-century German optical soul.

Key Features

• True 4-element in 3-groups true-telephoto optical layout, engineered to minimize geometric distortion and ensure straight, ruler-flat lines across the frame.

• Elegant 135mm long-focal portrait perspective, offering high subject isolation and beautiful background compression for fine-art portraiture.

• Universal M39 Leica Thread Mount (LTM) mechanical architecture, compatibility matching natively with vintage rangefinders or adapting cleanly to modern mirrorless systems.

• Single-layered anti-reflective optical glass coating treatment, optimizing color transmission and adding a soft, glowing retro flare character.

• Spectacular 15-blade circular mechanical manual aperture diaphragm, maintaining perfectly round out-of-focus highlights even when stopped down.

• Integrated removable optical head component design, allowing the front lens element block to be unscrewed and mounted directly onto vintage Leitz Visoflex reflex housings.

• High-visibility color-coded engraved depth-of-field index mapping, providing tactile scale-focusing calculations right on the heavily knurled barrel rings.

Condition Report Good condition. Body: Standard light signs of historical past use, showing typical minor cosmetic surface scuffs on the black vulcanite-textured barrel grip and faint bright finish rubs on the polished chrome accent bands. The mounting threads are clean and couple tightly. Sensor/Optics: Lens elements are bright and clear. The internal optical path is completely free from internal fungus, severe separation, or deep glass scratches. As is typical for true mid-century German glass, faint internal micro-dust particles and a trace of light vintage internal haze can be spotted under strong direct inspection, which does not affect daylight image contrast or resolution performance. Mechanics/Electronics: Fully operational. The long manual focus throw turns uniformly with a firm, nicely dampened mechanical resistance, the unclicked manual aperture adjustment ring glides smoothly across the scale, and the massive 15-blade iris network is dry and completely oil-free.

Specialist Note "The Leitz Hektor 135mm f/4.5 is a gorgeous window into the golden era of Wetzlar optical design. While modern lenses prioritize clinical, sterile sharpness, this true long-focal-length lens draws with an undeniable romanticism. The defining characteristic of this lens is its magnificent 15-blade aperture diaphragm; when you stop down, the iris stays perfectly circular, creating a creamy background fall-off and buttery bokeh bubbles that modern polygonal lenses can't replicate. Adapted onto a modern full-frame digital mirrorless body, it becomes a phenomenal, budget-friendly portrait tool that infuses skin tones with a rich, glowing micro-contrast and classic vintage character. It is a completely transparent, satisfyingly tactile piece of photographic history to shoot with."

What's Included

• Ernst Leitz GmbH Wetzlar Hektor 135mm f/4.5 Telephoto Prime Lens (S/N: 1407986)

• Front Protective Lens Cap

• Rear M39 Mount Protective Thread Cap
  

Technical Specifications

• Brand: Leitz (Leica)

• Model: Hektor 135mm f/4.5 (13.5cm 1:4.5)

• Lens Type: Prime Lens

• Lens Mount: M39 Leica Thread Mount (LTM)

• Focal Length: 135mm

• Maximum Aperture: f/4.5

• Minimum Aperture: f/32

• Optical Construction: 4 Elements in 3 Groups

• Diaphragm Blade Count: 15 Blades (Circular)

• Focus Type: Manual Focus Only

• Category: 2. Lenses ▸ Prime Lens

• Battery Type: None Required (Fully Mechanical)