Marketed	October 2015
Original Price	285,000 yen
Lens Construction (group)	11
Lens Construction (element)	14
No. of Diaphragm Blades	9 (circular aperture)
Minimum Aperture	22
Closest Focusing Distance (m)	0.28
Maximum Magnification (x)	0.21
Filter Diameter (mm)	Approx. 72
Maximum Diameter x Length (mm)	Approx. 80.4 x 105.5
Weight (g)	Approx. 760

The EF35mm f/1.4L II USM’s newly developed BR^* lens employs a BR optical element with anomalous dispersion characteristics that greatly refract blue light (short wavelength spectrum). The BR optical element is sandwiched between convex and concave glass lenses to form the BR lens, which makes possible exceptionally high levels of chromatic aberration correction. Until the emergence of this technology, achieving significant improvements in correcting for chromatic aberration in large-aperture lenses had proven a difficult challenge.

In addition to the newly developed BR lens, the EF35mm f/1.4L II USM incorporates two aspherical lenses—a glass molded aspherical lens and a Canon-developed ground aspherical lens—and a UD lens that realize high image quality from the center of the image field to the peripheral areas even when shooting at wide aperture settings. Furthermore, Canon’s proprietary SWC (Subwavelength Structure Coating) anti-reflection coating technology contributes to advanced imaging performance by reducing the occurrence of flare and ghosting.

The EF35mm f/1.4L II USM was designed to deliver reliable performance even in harsh shooting conditions. The internal mechanical structure of the lens barrel was modified to achieve high durability along with vibration and shock resistance, while the mount, switches and focusing ring feature dust- and water-resistant construction. Additionally, the front and rear lens elements of the lens employ a fluorine coating that is highly oil- and water-repellent, enabling any oil smears or water droplets on the lens to be wiped off quickly and easily using a soft dry cloth.

* Blue Spectrum Refractive Optics