(SOLD) LOMO OKC 10-28-1M T1.5 CKBK PL

Description InfoHistorySpecsFootage LOMO OKC 10-28-1M T1.5 CKBK PL For sale: LOMO OKC 10-28-1M T1.5 CKBK lens with PL mount. This lens is 28mm T1.5 / F1.2 and covers sensors up to 16x22mm. This is a very late production and made by CKBK the serial number is 89009 and thus made in the year the soviet union ended. Condition: Optics: Excellent, near mint, with a few minor coating scratches (see pictures). No cleaning marks, haze, or separation. The tiny scratches do not impact optical performance. Iris: Minimal oil present on the blades, which is typical and does not affect operation. Iris movement is smooth with no leakage. Details: Carefully selected optical cell ensures superior image quality. Lens is well-centered for optimal performance. We’re selling because we already have two identical lenses. Originally designed for 16×22 cinematography; slight vignetting occurs beyond this sensor size (videos available upon request). Corner illumination is excellent at 16×22, and using an expander enables compatibility with larger sensors. Native housing is smooth with minor helicoid play (recently regreased for smooth focusing). We recommend rehousing by GL Optics for optimal mechanical performance, though this lens can be used immediately with standard focus gears and PL mount. Note: The iris is front-positioned, causing the front element to rotate and extend during focusing. Important note: Marked T1.5, but verified at T1.45 using an Aivascope Faro T-stop measuring device. Slightly faster than indicated, corresponding to an F-stop of 1.2 (F-stop determines depth of field). For questions, personal inspection, or video demonstration requests, please contact us at [email protected]. LOMO OKC 10-28-1M T1.5 CKBK PL Originally developed in the 1970s and 1980s for Soviet cinema, these lenses offered exceptionally fast apertures (typically T1.3-T1.5) to accommodate shooting under very low-light conditions, aligning with the practical and aesthetic demands of Russian cinematographers of that period. The 10-28-1 specifically refers to the 28mm focal length Superspeed lens, prized for its unique optical character: sharpness combined with gentle yet distinct falloff, painterly rendering of colors, and characteristic flares that later became sought after by modern filmmakers looking for expressive visual textures. The LOMO Superspeed 10-28-1, part of the legendary OKC series from the Leningrad Optical Mechanical Association, embodies a distinctive Soviet-era cinematic vision. Designed specifically for Super 35mm motion-picture applications, it integrates an optical layout related to classic Planar formulas, typically featuring six elements arranged in six groups—optimized to deliver a uniquely artistic image rendering. The lens excels in resolving fine detail, demonstrating a commendable sharpness that peaks around T2-T2.8. However, what sets the 10-28-1 apart is the deliberate softness in contrast, particularly noticeable when shot wide open at T1.5. Unlike contemporary lenses, which emphasize micro-contrast and clarity, the LOMO prioritizes a painterly gradation, creating images with gentle transitions, subdued contrast, and smooth tonal separation. Its Modulation Transfer Function (MTF) curve reflects precisely this characteristic: high spatial frequencies are resolved clearly, yet the lower frequency (overall) contrast remains intentionally softened. This interplay—sharp detail rendition combined with lowered contrast—gives images a dreamlike, cinematic aesthetic. The distinctive soft-contrast profile is complemented by characteristic bokeh, gentle highlight bloom, and subtle, organic flares. Modern rehousings have further refined mechanics and ergonomics, yet filmmakers today continue to prize this lens precisely for its authentic, vintage optical identity: sharpness with poetic softness in contrast, uniquely suited to narrative and artistic storytelling. Following the collapse of the Soviet Union (1989), these lenses gradually found their way into the Western cinematography market, initially as affordable, overlooked alternatives to Zeiss Superspeeds or Cooke lenses. Soon, however, they became cult items due to their artistic rendering and vintage look. Today, LOMO Superspeed lenses—including the 10-28-1—are highly sought after among cinephiles, lens enthusiasts, and filmmakers seeking unconventional, painterly visual styles. Their legacy endures precisely because their perceived imperfections—flare, distortion, and distinct color rendition—have come to embody a certain poetry in contemporary cinematography. 28mm lens T1.5 / F1.2 48 cm close focus! 1.2 kg weight (with front and PL cap) 99 mm Front Outer Diameter 95 mm front filter threads Stainless steel PL mount. iris T1.5 – T22 flower leave iris style The two videos below were specifically shot on this lens block, so a good example, to be even more precise these are shot in 18mm sensor height, to show its vignetting/fall off. this lens is designed for 16X22 35mm film. As you can see 18mm height (alexa open gate 18.2 mm) will work, but if you want less fall off an expander (there are many good ones that have a ratio of 1.2), will do magic, or crop slightly. obviously alexa mini in dci will work perfectly fine!