The Canon CN-E 85mm T1.3 L Cine Lens is an EF-mount long lens for Canon's C-series cinema cameras, for full-frame EOS DSLRs, and for any video-capable cameras that accept EF-mount lenses.

Features:

• EF Mount Prime Designed for Cine-Use
• For Canon C-Series and Full-Frame DSLRs
• Achieves Telephoto Look
• 11-Blade Rounded Diaphragm
• Stepless and Manual Diaphragm Ring
• 300 Barrel Rotation
• Superb Available Light Performance
• Strong Bokeh and Circular Highlights
• Supports 4K Recording Quality
• Swaps Easily with 24 and 50mm Relatives
• Allow 2 - 4 weeks for Shipping

The aperture is a fast 1.3 and lets you get superior shots in low light. The diaphragm is made up of 11-blades and is as round as can be, and along with the fast aperture it can produce impressive bokeh and beautiful circular highlights. The diaphragm ring is stepless, is super-smooth, and is fully manual, even when used with a DSLR, offering evermore accurate handle. 

The CN-E 85 was released with two complementary relatives -- the CN-E 24mm and CN-E 50mm. All three lenses share the same front diameter, form factor, optical design, placement of gear rings, and mechanical construction. Because of the identical characteristics, one lens can be swapped with another easily, even when geared accessories are involved.

Additional Features:

• A cinema lens with a precise 300 barrel rotation and a very rounded 11-blade diaphragm
• For Canon's C100, C300 and C500, for full-frame DSLRs, and for any video-capable cameras
• Features sharp optics capable of 4K-quality recording and a fast aperture that does great in low light

Canon CN-E 85mm T1.3 L Cine Lens (EF Mount)