Canon RF 85mm f/1.2 L USM DS Lens

The Canon RF 85mm f/1.2 L USM DS is a unique and versatile portrait-length prime lens designed for full-frame Canon RF-mount mirrorless digital cameras. Here are its key features:

Defocus Smoothing (DS) Coating:

The lens features a special DS (Defocus Smoothing) coating that softens and smoothens the bokeh quality, particularly when working at wider aperture settings. This effect enhances the out-of-focus regions in an image, creating a soft and pleasing background blur. Sharpness is retained in the in-focus portions, ensuring noticeable subject separation and a three-dimensional quality. The DS coating is most prominent at f/1.2 but gradually reduces as the aperture is stopped down. Note that the DS coating requires approximately 1.3 stops more exposure than the standard version of the lens at wide-open apertures. By f/3.2, both versions of the lens have nearly identical light transmission and performance.

Exceptionally Bright Aperture:

With its bright f/1.2 maximum aperture, the lens provides extensive control over the depth of field. This allows for selective focus applications and excels in low-light situations, delivering sharp and detailed images even in challenging lighting conditions.

Optical Design:

The lens incorporates a Blue Spectrum Refractive Optics element, which virtually eliminates color fringing and chromatic aberrations by refracting shorter wavelengths of the visible spectrum (blue light). Additionally, one aspherical element and one UD (Ultra-Low Dispersion) element are featured to control aberrations and distortion, ensuring sharp and clear image quality.

Air Sphere Coating (ASC):

Lens elements are coated with an Air Sphere Coating to reduce backlit flaring and ghosting. This coating enhances light transmission and maintains high contrast, even in strong and backlit lighting conditions.

Autofocus and Manual Focus:

The lens is equipped with a ring-type Ultrasonic Motor (USM) that provides fast, precise, and near-silent autofocus performance. It also offers full-time manual focus override, allowing for manual adjustments even when autofocus is engaged.

Control Ring:

The lens features a configurable Control Ring, allowing you to adjust various exposure settings, including aperture, ISO, and exposure compensation directly from the lens itself. This intuitive control enhances your shooting experience and enables quick adjustments on the fly.

Weather-Resistant Design:

As a member of the esteemed L-series, the lens boasts a weather-resistant design, making it dust and moisture resistant. This durability allows you to use the lens in diverse and challenging weather conditions.

Bokeh Quality:

The lens’s rounded 9-blade diaphragm contributes to a pleasing bokeh quality, enhancing the aesthetic appeal of your images.