Comparison of Zeiss 135mm f/2 Milvus 2/135 and Sony SAL-135F18Z Carl Zeiss Sonnar T* 135mm f/1.8

Attribute	Zeiss 135mm f/2 Milvus 2/135 ×	Sony SAL-135F18Z Carl Zeiss Sonnar T* 135mm f/1.8 ×
Magnification Ratio (x)	0.25	0.25
Filter Size (mm)	77	77
Focus Details	Manual focus only	Internal
Closest Focus (m)	0.8	0.72
Lens Construction	11 elements in 8 groups, including 4 Anomalous Partial Dispersion elements; Enhanced Zeiss T* anti-reflective coating	11 elements in 9 groups, including 2 ED elements
Length (mm)	114	115
Focal Length (mm)	135.00	135.00
Diaphragm Blades Type	rounded	-
Brand	Carl-zeiss	Sony
Image Circle	35mm	35mm
Name	Zeiss 135mm f/2 Milvus 2/135	Sony SAL-135F18Z Carl Zeiss Sonnar T* 135mm f/1.8
Weight (g)	1059	1050
Type	Telephoto Prime	Telephoto Prime
Notes	Available lens mounts: Canon EF (ZE), Nikon F (ZF.2); Weather-sealed construction to protect against dust and moisture; Hood and lens caps included.	Included Accessories: SH0007 Lens Hood
APS Equivalent	1.5x: 202.5mm; 1.6x: 216mm	202.5mm
Aperture (f)	2.00 - 22.00	1.80 - 22.00
Diaphragm Blades	9	9
Diagonal Angle of View (degree)	18.70	18.00
Diameter (mm)	89.7	88.5