Comparison of Canon EF 85mm f/1.4L IS USM and Zeiss 85mm f/1.4 Otus 1.4/85 APO Planar

Attribute	Zeiss 85mm f/1.4 Otus 1.4/85 APO Planar ×	Canon EF 85mm f/1.4L IS USM ×
Filter Size (mm)	86	77
Notes	Available Mounts: Canon EF (ZE), Nikon F (ZF.2); Included Accessories: Lens hood, front and rear lens caps.	Image Stabilized (up to 4 stops); Weather sealed.
Closest Focus (m)	0.8	0.85
Magnification Ratio (x)	0.13	0.12
Type	Telephoto Prime	Telephoto Prime
Length (mm)	124	105.4
APS Equivalent	1.5x: 127.5mm1.6x: 136mm	136mm
Diagonal Angle of View (degree)	28.20	28.50
Image Circle	35mm	35mm
Focal Length (mm)	85.00	85.00
Brand	Carl-zeiss	Canon
Name	Zeiss 85mm f/1.4 Otus 1.4/85 APO Planar	Canon EF 85mm f/1.4L IS USM
Weight (g)	1200	950
Aperture (f)	1.40 - 16.00	1.40 - 22.00
Diaphragm Blades	9	9
Diaphragm Blades Type	rounded	rounded
Lens Construction	11 elements in 9 groups, including 1 aspheric and 6 elements made of special glass with anomalous partial dispersion	14 elements in 10 groups, including 1 aspherical element; ASC (Air-Sphere coating); Fluorine coating
Diameter (mm)	101	88.6
Focus Details	Internal focusing; Manual focus only	High-speed autofocus via USM with full-time manual focus