Comparison of Carl Zeiss 50mm f/1.4 Planar T* 1.4/50 and Nikon 50mm f/1.2 AIS Nikkor

Attribute	Nikon 50mm f/1.2 AIS Nikkor ×	Carl Zeiss 50mm f/1.4 Planar T* 1.4/50 ×
Aperture (f)	1.20 - 16.00	1.40 - 16.00
Filter Size (mm)	52	58
Notes	Classic Nikon F Mount; AIS / AI / NAI Metering Compatibility; Includes front and rear lens caps.	Available SLR mounts: Canon EF-Mount (ZE), Nikon F-Mount (ZF, ZF.2), Pentax K-Mount (ZK), M42 Screw Mount (ZS). Nikon ZF.2 version includes CPU inter
Closest Focus (m)	0.5	0.45
Magnification Ratio (x)	0.13	0.15
Type	Standard Prime	Standard Prime
Focus Details	Manual Focus Only	Manual focus only
APS Equivalent	75mm	1.5x: 77.6mm
Diaphragm Blades	9	9
Image Circle	35mm (FX)	35mm
Focal Length (mm)	50.00	51.70
Brand	Nikon	Carl-zeiss
Name	Nikon 50mm f/1.2 AIS Nikkor	Carl Zeiss 50mm f/1.4 Planar T* 1.4/50
Weight (g)	359	330
Diagonal Angle of View (degree)	46.00	45.40
Length (mm)	48.3	45
Diameter (mm)	68.6	65
Lens Construction	7 elements in 6 groups	7 elements in 6 groups