Comparison of Canon EF 85mm f/1.4L IS USM and Canon RF 85mm f/1.2L USM

Attribute	Canon RF 85mm f/1.2L USM ×	Canon EF 85mm f/1.4L IS USM ×
Filter Size (mm)	82	77
Notes	Dust- and Weather-resistant	Image Stabilized (up to 4 stops); Weather sealed.
Closest Focus (m)	0.85	0.85
Magnification Ratio (x)	0.12	0.12
Type	Telephoto Prime	Telephoto Prime
Length (mm)	117.3	105.4
APS Equivalent	136mm	136mm
Diagonal Angle of View (degree)	28.50	28.50
Image Circle	35mm	35mm
Focal Length (mm)	85.00	85.00
Brand	Canon	Canon
Name	Canon RF 85mm f/1.2L USM	Canon EF 85mm f/1.4L IS USM
Weight (g)	1195	950
Aperture (f)	1.20 - 16.00	1.40 - 22.00
Diaphragm Blades	9	9
Diaphragm Blades Type	circular	rounded
Lens Construction	13 elements in 9 groups, including 1 aspherical, 1 Blue Spectrum Refractive Optics (BR) and 1 UD element; Air Sphere Coating	14 elements in 10 groups, including 1 aspherical element; ASC (Air-Sphere coating); Fluorine coating
Diameter (mm)	104.2	88.6
Focus Details	Internal with ring type USM; AF/MF switch; Focus limiter switch	High-speed autofocus via USM with full-time manual focus