Comparison of Carl Zeiss 50mm f/1.4 Planar T* 1.4/50 and Zeiss 50mm f/2 Loxia 2/50

Attribute	Carl Zeiss 50mm f/1.4 Planar T* 1.4/50 ×	Zeiss 50mm f/2 Loxia 2/50 ×
Filter Size (mm)	58	52
Notes	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	Sony E-Mount (full frame); Weather-resistant lens mount gasket; Included Accessories: Lens hood, front and rear lens caps, de-click key.
Closest Focus (m)	0.45	0.45
Magnification Ratio (x)	0.15	0.14
Type	Standard Prime	Standard Prime
Focus Details	Manual focus only	Manual focus only, with large 180 degree focus throw, engraved distance and DOF scales
APS Equivalent	1.5x: 77.6mm	1.5x: 75mm
Diameter (mm)	65	62.1
Image Circle	35mm	35mm
Focal Length (mm)	51.70	50.00
Brand	Carl-zeiss	Carl-zeiss
Name	Carl Zeiss 50mm f/1.4 Planar T* 1.4/50	Zeiss 50mm f/2 Loxia 2/50
Weight (g)	330	320
Aperture (f)	1.40 - 16.00	2.00 - 22.00
Diaphragm Blades	9	10
Diagonal Angle of View (degree)	45.40	46.80
Length (mm)	45	59.2
Diaphragm Blades Type	-	rounded
Lens Construction	7 elements in 6 groups	6 elements in 4 groups; Zeiss T* anti-reflective coating