Here is some additional informtion on the latest DK-Optic lenses for Leica M-mount:
- The Chiaro 76mm f/1.9 M: gorgeous 3D pop, cinematic rendering, and organic skin tones of the classic British “Super Six” design, engineered into a native M-mount body.
- The Impastolite 51mm f/1.5 M: inspired by the legendary Septac formula. Weighing only 179g, featuring an 18-blade aperture for perfectly circular bokeh, and is rangefinder coupled
- The Impastolite 51mm f/1.5 M: based on the mid-20th century British 50mm f/1.5, widely known as the legendary Septac, this is a 1:1 true-to-original restoration
You can use coupon code DKOPTIC202607 for $100 off on the official website.
DK-Optic lenses are also sold on eBay.
Here are the full details and technical specifications:
DK-Optic Chiaro 3-inch 76mm f/1.9 M
A Tribute to an Optical Legend
Widely revered as the “Holy Grail” of mid-20th-century portrait and cinema photography, the Super Six 3-inch (76mm) f/1.9 needs no introduction among seasoned vintage lens connoisseurs. In its era, it represented the absolute pinnacle of immense light-gathering, a massive image circle, and ultimate spatial separation. Its magical ability to seemingly “carve” the subject straight out of the background creates an atmosphere that remains as highly coveted today as it was decades ago. Driven by pure passion, DK-Optic has flawlessly resurrected this masterpiece, combining its vintage soul with the extreme precision of modern industrial manufacturing.
Pure Optical Recreation
We engineered a 1:1 true-to-original restoration without any clinical modern “additives.” We have faithfully reconstructed the massive glass elements of this classic medium-telephoto, strictly adhering to its legendary 6-elements-in-4-groups optical configuration.
Signature Rendering & Character
Rejecting the sterile, dry perfection of modern optics. As a 76mm ultra-fast lens, shooting wide open at f/1.9 delivers an astounding level of 3D subject isolation (often described as “cutting through air”) alongside its signature, highly painterly bokeh. Under backlit conditions, it produces rich, cascading “peacock feather” flares. Yet, as you stop down the aperture, the image rapidly builds contrast, transforming the lens into a flawless, razor-sharp portrait weapon.
Cinematic-Grade Artisanal Construction
Leveraging our high-end cinema lens production capabilities, every mechanical and optical component is designed and hand-assembled in our bespoke optical workshop. Even with the massive glass volume required for a 3-inch lens, our cine-grade mechanical structures guarantee an incredibly smooth, buttery focusing experience.
Silver Chrome Edition & Mechanics
The main exterior barrel is crafted from high-strength 7075 aerospace-grade aluminum to significantly reduce weight. The core focusing helicoid and aperture mechanics are CNC 5-axis machined from aerospace-grade brass, providing an unparalleled, robust, heavy-duty mechanical feel.
Vintage Optics
We utilize large-diameter, decades-old New Old Stock (NOS) optical glass to perfectly replicate the exact refractive index and the dense, luminous clarity of the original vintage elements.
Specifications
- Focal Length: 76mm (3 inch)
- Format Coverage: 135 Full Frame (Note: The massive image circle of this lens comfortably covers 645 Medium Format sensors)
- Optical Design: 6 Elements in 4 Groups
- Minimum Focusing Distance: 0.7m (Perfectly coupled for rangefinder systems)
- Aperture Control: Manual preset (Dampened and calibrated to cinema-grade standards)
- Aperture Range: f/1.9 – f/11
- Aperture Blades: 16 blades (Ensuring a perfectly circular bokeh at all stops)
- Lens Mount: Native Leica M-Mount
- Filter Thread: [Please insert filter size here, e.g., 58mm] (Note: This was left blank in your Chinese text)
- Lens Hood: Detachable threaded metal hood
- Dimensions & Weight
- Length (Mounted on camera): 91mm
- Maximum Diameter: 62mm
- Weight: 364g (Brass/Aluminum hybrid construction, excluding caps)
DK-Optic Chiaro 2-inch 51mm f/1.9 M
A Tribute to an Optical Legend
The mid-20th century British “Super Six” optical design needs no introduction. The Super Six 2-inch f/1.9 stands as one of the most legendary standard-focal-length lenses in the realm of painterly optics. In its era, it represented the absolute pinnacle of balancing extreme resolving power with dream-like bokeh. The unique “3D Pop” it delivers wide open remains just as highly coveted today as it was decades ago. Driven by pure passion, DK-Optic has flawlessly paid homage to this masterpiece, combining its vintage soul with the extreme precision of modern industrial manufacturing.
Pure Optical Recreation
We have engineered a 1:1 true-to-original restoration without any modern optical compromises or clinical “additives.” We strictly adhered to the classic 6-elements-in-4-groups structural variation that made this historical design so famous.
Signature Rendering & Character
Rejecting the sterile, dry perfection of modern lenses. Wide open at f/1.9, the Chiaro 2-inch delivers mesmerizing 3D spatial separation (subject isolation). The in-focus areas maintain astonishing sharpness, while the out-of-focus areas rapidly melt away into a signature, highly painterly bokeh. As you stop down the aperture, the image rapidly transitions, revealing exceptional contrast and high resolving power.
Cinematic-Grade Artisanal Construction
Leveraging our high-end cinema lens production capabilities, every mechanical and optical component is designed and hand-assembled in our bespoke optical workshop—from the CNC 5-axis machining of core brass components to the grinding of decades-old New Old Stock (NOS) optical glass.
Silver Chrome Edition:
The main exterior barrel is crafted from high-strength 7075 aerospace-grade aluminum to significantly reduce weight. The core focusing helicoid and aperture mechanics are machined from aerospace-grade brass, providing an unmatched, buttery-smooth tactile feel.
Specifications
- Focal Length: 51mm (2 inch)
- Format Coverage: 135 Full Frame (24x36mm)
- Optical Design: 6 Elements in 4 Groups
- Minimum Focusing Distance: 0.7m (Perfectly coupled for rangefinder systems)
- Aperture Control: Manual preset (Dampened and calibrated to cinema-grade standards)
- Aperture Range: f/1.9 – f/22
- Aperture Blades: 12 blades (Ensuring a perfectly circular bokeh at all stops)
- Lens Mount: Native Leica M-Mount
- Filter Thread: 37mm (Lens Body)
- Lens Hood: Detachable threaded metal hood
- Dimensions & Weight
- Length (Mounted on camera, including hood): 52mm
- Maximum Diameter: 52mm
- Weight: 188g (Brass/Aluminum hybrid construction, excluding caps) (Note: Final weight subject to slight adjustments based on production)
DK-Optic Impastolite 2-inch 51mm f1.5 M
A Tribute to an Optical Legend
The mid-20th century British 50mm f/1.5 (widely known as the legendary Septac) remains one of the rarest and most mythologized ultra-fast lenses in history. It represented the era’s absolute pinnacle of light-gathering capabilities and unique, painterly rendering. Its vintage atmosphere and signature look are just as highly sought after today as they were decades ago. Driven by pure passion, DK-Optic has flawlessly resurrected this masterpiece, combining its vintage soul with the extreme precision of modern industrial manufacturing.
Authentic Optical Recreation
Rather than injecting clinical modern corrections, we engineered a 1:1 true-to-original restoration. By refusing modern optical additives and utilizing a specially formulated vintage-style amber coating, we have faithfully preserved the distinctive, evocative flavor of the original glass.
Signature Rendering & Character
Rejecting the sterile, dry perfection of modern optics. Wide open at f/1.5, the Impastolite delivers a mesmerizing “Glow” alongside its signature, highly painterly, swirly bokeh. Under backlit conditions, it produces rich, cascading “peacock feather” flares. Yet, as you stop down the aperture, the image rapidly transitions, revealing exceptional contrast and high resolving power.
Cinematic-Grade Artisanal Construction
Leveraging our high-end cinema lens production capabilities, every mechanical and optical component is designed and hand-assembled in our bespoke optical workshop.
Black Paint & Mechanics
The main exterior barrel is crafted from high-strength 7075 aerospace-grade aluminum to significantly reduce weight. The core focusing helicoid and aperture mechanics are CNC 5-axis machined from aerospace-grade brass, providing an unmatched, buttery-smooth tactile feel.
Vintage Optics
The internal elements are crafted from decades-old New Old Stock (NOS) optical glass, perfectly replicating the exact refractive index and classic characteristics of the original materials.
Specifications
- Focal Length: 51mm (2 inch)
- Format Coverage: 135 Full Frame (24x36mm)
- Optical Design: 7 Elements in 5 Groups
- Minimum Focusing Distance: 0.7m (Perfectly coupled for rangefinder systems)
- Aperture Control: Manual preset (Dampened and calibrated to cinema-grade standards)
- Aperture Range: f/1.5 – f/11
- Aperture Blades: 18 blades (Ensuring a perfectly circular bokeh at all stops)
- Lens Mount: Native Leica M-Mount
- Filter Thread: 43mm (Lens Body) / 46mm (Lens Hood)
- Lens Hood: Detachable threaded metal hood
- Length (Mounted on camera): 46mm
- Maximum Diameter: 54mm
- Weight: 179g (Brass/Aluminum hybrid construction, excluding caps)
They also have the DK-Optic Chiaro 3-inch 76mm f/1.9 for 645 medium format mount:
A few pictures from the making of the DK-Optic Impastolite 50mm f/1.5 lens:
Next, a few comparisons with the original Dallmeyer Septac Anastigmat 50mm f/1.5:
Sample photos from the DK-Optic Impastolite 50mm f/1.5 lens:
Previous coverage of DK Optic lenses can be found here:
