Thypoch Simera 28mm f/1.4 ASPH Manual Focus Full-Frame Wide-Angle Prime Lens

The Thypoch Simera 28mm f/1.4 is a full-frame manual focus wide-angle prime built for photographers who want the tactile discipline of a classic rangefinder lens without giving up modern optical performance. Its 11-element, 7-group formula combines one aspherical element, one extra-low dispersion (ED) element and three high-refractive-index (HRI) elements with a floating lens group, so definition holds up from infinity all the way down to the 0.4m minimum focusing distance. The bright f/1.4 aperture pulls in light for handheld night scenes, dim interiors and available-light street work, while separating your subject from the background with a depth of field that a slower 28mm simply cannot produce.

Where the Simera 28mm really distinguishes itself is character. A 14-blade rounded diaphragm keeps out-of-focus highlights circular through the aperture range and turns point light sources into clean, artistic starbursts when you stop down, giving the lens a signature that suits environmental portraits, documentary storytelling, architecture and cinematic night photography alike. Engraved sun and moon markings on the barrel toggle the aperture ring between clicked and de-clicked (stepless) operation, so the same lens serves stills shooters who want positive detents and video shooters who need silent, seamless exposure ramps. Everything is manual and mechanical: there are no electronic contacts, just precise metal engineering and a beautifully damped focus throw.

The all-metal anodized aluminum body carries an ergonomic crescent-shaped focus tab for fast single-finger focusing along with a 1950s-inspired red-dot depth-of-field scale for zone-focusing on the street. On the Leica M version - the Type II, which replaces the original infinity-lock lever with that focus tab - the lens is rangefinder-coupled, with a deliberate tactile resistance point at 0.7m that tells you when the rangefinder uncouples and it is time to switch to EVF or live-view focusing for closer work. The same 28mm optic is offered in Leica M, Sony E, Nikon Z, Canon RF and FUJIFILM X mounts in black or silver, all sharing the compact 49mm filter thread. Mounted on an APS-C FUJIFILM X body the full-frame image circle is cropped by 1.5x, giving roughly a 42mm-equivalent field of view - a notably tighter, near-normal perspective rather than a true wide angle.

Features

• Bright f/1.4 maximum aperture for low-light shooting, night scenes and shallow depth-of-field subject separation on full-frame sensors
• 14-blade rounded diaphragm delivers circular bokeh highlights and clean sunstar flares when stopped down
• Advanced 11-element / 7-group optical design with 1 aspherical, 1 ED and 3 HRI elements plus a floating lens group for edge-to-edge definition and close-focus correction
• 0.4m minimum focusing distance for tight environmental portraits, details and creative close-ups
• Sun and moon aperture markings switch the ring between clicked (stepped) and de-clicked (stepless) operation for stills or video
• Ergonomic crescent-shaped focus tab enables smooth single-finger manual focusing; on the Leica M Type II it takes the place of the original infinity-lock lever
• Rangefinder-coupled on Leica M, with a tactile resistance point at 0.7m signaling the switch to EVF focusing
• 1950s-inspired red-dot depth-of-field scale on an all-metal anodized aluminum barrel
• Compact 49mm front filter thread accepts standard UV, ND and polarizing filters
• Offered in Leica M, Sony E, Nikon Z, Canon RF and FUJIFILM X mounts, in black or silver finishes

Technical Specifications

• Focal Length: 28mm
• Maximum Aperture: f/1.4
• Minimum Aperture: f/16
• Aperture Blades: 14, rounded; switchable clicked / de-clicked (stepless) via sun & moon markings
• Optical Design: 11 elements in 7 groups (1 aspherical, 1 ED, 3 HRI) with floating lens group
• Format Coverage: Full-frame (35mm) image circle
• Angle of View: 75° / 65° / 45° (diagonal / horizontal / vertical) on full-frame; 53° / 45° / 31° on APS-C
• Minimum Focusing Distance: 0.4 m
• Focus Type: Manual focus only, fully mechanical with no electronic contacts (rangefinder-coupled on Leica M, with a tactile resistance point at 0.7m)
• Focus Control: Crescent-shaped focus tab
• Filter Thread: 49mm
• Diameter: Approx. 54mm
• Length (Leica M version): Approx. 55mm
• Weight: Approx. 330 g (Leica M) / approx. 347 g (Sony E, Nikon Z, Canon RF, FUJIFILM X)
• Barrel Construction: Anodized aluminum
• Available Mounts: Leica M, Sony E, Nikon Z, Canon RF, FUJIFILM X

What's Included

• Thypoch Simera 28mm f/1.4 ASPH Lens
• Metal Lens Hood
• Lens Hood Front Cap
• Front Lens Cap (mount-specific)
• Rear Lens Cap (mount-specific)