RF Lenses

STANDARD & MEDIUM TELEPHOTO Lens

RF85mm F1.2 L USM DS

  • Specifications
  • Block diagram
Marketed December 2019
Original Price Open price
Lens Construction (group) 9
Lens Construction (element) 13
No. of Diaphragm Blades 9 (circular aperture)
Minimum Aperture 16
Closest Focusing Distance (m) 0.85
Maximum Magnifcation (x) 0.12
Filter Diameter (mm) 82
Maximum Diameter x Length (mm) Approx. 103.2×117.3
Weight (g) Approx. 1,195

The RF85mm F1.2 L USM DS employs DS (Defocus Smoothing) Coating technology on two lens element surfaces, which has the effect of blocking light by gradually lowering light transmittance from the center of the lens to the periphery. The effect of the DS Coating combines with the lens’ fast f/1.2 maximum aperture to deliver large blurring with smooth edges, resulting in beautiful, smooth expression of out-of-focus areas.

The RF85mm F1.2 L USM DS boasts the highest level of image quality1 among Canon interchangeable lenses with an 85 mm focal length. Taking advantage of the characteristics of the RF mount that offer a high degree of freedom in lens design—an internal mount diameter of 54 mm, the same as the EF mount, and a short back focus2 distinctive of mirrorless cameras—the lens achieves overwhelmingly high image quality from the center of the image field to the peripheral areas, even at maximum aperture. What’s more, through the combination of a proprietary BR lens3 and a proprietary UD (Ultra Low Dispersion) lens, the RF85mm F1.2 L USM DS significantly reduces color fringing, which can easily occur with wide-aperture lenses, and realizes an exceedingly high level of correction for chromatic aberration.

In addition to a focus ring, the lens features a control ring that can be customized to adjust such settings as exposure compensation and aperture value, enabling intuitive operation that can be changed to suit the shooting environment. Furthermore, the RF85mm F1.2 L USM DS maintains levels of high durability and impact resistance befitting an L-series lens.

1 Realizes the highest level of optical performance (MTF) at maximum aperture among autofocus-capable 85 mm-focal-length lenses for interchangeable-lens cameras (DSLR and mirrorless) sold by Canon before October 24, 2019.
2 A short distance between the optical axis from the vertex of the rear lens element to the imaging plane when focused to infinity.
3 Blue Spectrum Refractive optical element: a composite lens comprising an organic optical material sandwiched between convex and concave glass elements.

Block diagram

Aspherical lens UD lenses BR optical element DS ASC