Comparison of Canon TS-E 45mm f/2.8 and Carl Zeiss 50mm f/2 Makro-Planar T* 2/50

Attribute	Canon TS-E 45mm f/2.8 ×	Carl Zeiss 50mm f/2 Makro-Planar T* 2/50 ×
Diagonal Angle of View (degree)	51.00	45.50
Filter Size (mm)	72	67
Aperture (f)	2.80 - 22.00	2.00 - 22.00
Closest Focus (m)	0.4	0.24
Magnification Ratio (x)	0.16	0.5
Type	Standard Prime Tilt-Shift	Standard Prime, Macro
Focus Details	Inner focusing; manual focus	Manual focus only
APS Equivalent	72mm	1.5x: 77.4mm
Diaphragm Blades	8	9
Image Circle	35mm	35mm
Focal Length (mm)	45.00	51.60
Brand	Canon	Carl-zeiss
Name	Canon TS-E 45mm f/2.8	Carl Zeiss 50mm f/2 Makro-Planar T* 2/50
Weight (g)	645	530
Diameter (mm)	81	72
Length (mm)	90	65
Notes	-	Available SLR mounts: Canon EF-Mount (ZE), Nikon F-Mount (ZF, ZF.2), Pentax K-Mount (ZK). Nikon ZF.2 version includes CPU interface for autoexposure
Lens Construction	10 elements in 9 groups	8 elements in 6 groups