Thypoch Simera 75mm f/1.4 ASPH Rangefinder-Coupled Portrait Prime Lens - Leica M / Black
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Description
The Thypoch Simera 75mm f/1.4 is a fast, all-metal medium-telephoto prime built specifically for the Leica M rangefinder system, and it is one of the very few f/1.4 lenses in M mount that is genuinely rangefinder-coupled. The 75mm focal length is the classic portrait length for a full-frame body: long enough to compress features flatteringly and separate your subject from the background, short enough to stay conversational and hand-holdable. Wide open at f/1.4 it gathers light for dim interiors, night streets and available-light events, and it renders a shallow depth of field that isolates the subject with a soft, three-dimensional pop.
Optically the Simera 75mm uses a 9-element, 8-group design that includes one aspherical element, two extra-low dispersion (ED) elements and two high-refractive-index (HRI) elements to hold sharpness across the frame while suppressing chromatic aberration and color fringing at wide apertures. Thypoch derived this formula from its Simera-C 75mm T1.5 cine prime, so the still lens inherits the same cinematic character: a natural, gradual focus roll-off rather than a harsh transition, and out-of-focus rendering that stays smooth and creamy instead of nervous. A 16-blade rounded diaphragm keeps the aperture opening circular from f/1.4 all the way to f/16, which means round specular highlights in backlit portraits and night scenes, and clean, well-defined starbursts when you stop down against point light sources.
Handling is where the Simera 75mm earns its keep. The lens body is precision-machined metal with damped focus and aperture rings, a classic engraved distance scale, and Thypoch's automatic depth-of-field indicator that visually fills in as you change focus and aperture — a genuinely useful aid for zone focusing and manual-focus street work. The aperture ring can be switched between clicked detents for stills and a de-clicked, stepless throw for silent video pulls, making this a true hybrid photo/video lens. It focuses down to 0.6m for tight head-and-shoulders portraits, pets, still life and tabletop detail, accepts common 58mm filters, and ships with a screw-in hood. At roughly 372g and just 64mm long it is remarkably pocketable for an f/1.4 telephoto, and while it is native Leica M, it adapts cleanly to Sony E, Nikon Z, Canon RF, Leica L and Fujifilm X mirrorless bodies with a standard M-mount adapter. Available in black and silver.
Features
- 75mm medium-telephoto focal length — the classic full-frame portrait length, with flattering compression and strong subject separation
- Fast f/1.4 maximum aperture for low-light shooting and shallow depth of field with pronounced subject isolation
- Rangefinder-coupled manual focus — one of the few f/1.4 rangefinder-coupled lenses available in the Leica M system
- Premium optical formula: 9 elements in 8 groups, including 1 aspherical, 2 ED (extra-low dispersion) and 2 HRI (high-refractive-index) elements for edge-to-edge sharpness and controlled aberration
- 16 rounded aperture blades hold a near-perfectly circular opening from f/1.4 through f/16 for smooth bokeh and clean starburst effects
- Shares its optical design with the Simera-C 75mm T1.5 cine prime, delivering natural, cinematic focus roll-off at wide apertures
- Switchable clicked / de-clicked aperture ring — detented stops for stills, stepless silent operation for video
- 0.6m (2 ft) minimum focusing distance for tight portraits, pets, still life and tabletop detail
- Automatic depth-of-field indicator plus engraved distance and DOF scales for intuitive zone focusing
- Precision all-metal construction with smooth, well-damped focus and aperture rings
- Accepts standard 58mm screw-in filters; round lens hood included
- Compact and lightweight at approx. 372g and 64mm long — easy to carry all day
- Full-frame coverage; adaptable to Sony E, Nikon Z, Canon RF, Leica L and Fujifilm X mirrorless bodies via an M-mount adapter
- Available in Black and Silver finishes
Technical Specifications
- Focal Length: 75mm
- Maximum Aperture: f/1.4
- Minimum Aperture: f/16
- Lens Mount: Leica M
- Format Coverage: Full-Frame (35mm)
- Optical Formula: 9 elements in 8 groups (1 aspherical, 2 ED, 2 HRI)
- Aperture Blades: 16, rounded
- Aperture Control: Switchable clicked / de-clicked
- Focus Type: Manual focus, rangefinder-coupled
- Minimum Focusing Distance: 0.6 m / 2 ft
- Filter Thread: 58mm (M58)
- Angle of View: 33° diagonal / 28° horizontal / 19° vertical
- Front Diameter: 62mm
- Length: 64–78mm / 2.5–3.1" (without hood)
- Weight: Approx. 372 g / 13.1 oz
What's Included
- Thypoch Simera 75mm f/1.4 ASPH Lens (Leica M Mount)
- Round Screw-In Lens Hood
- Front and Rear Lens Caps





