Comparison of Zeiss 18mm f/2.8 Milvus 2.8/18 and Sony 24mm f/2 SSM Carl Zeiss Distagon T* SAL24F20Z

Attribute	Zeiss 18mm f/2.8 Milvus 2.8/18 ×	Sony 24mm f/2 SSM Carl Zeiss Distagon T* SAL24F20Z ×
Filter Size (mm)	77	72
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.	Sony Alpha SLR Mount. Included Accessories: ALC-SH110 Lens Hood, Case
Closest Focus (m)	0.25	0.19
Magnification Ratio (x)	0.14	0.29
Type	Wide Prime	Wide Prime
Length (mm)	90	76
APS Equivalent	1.5x: 27mm; 1.6x: 28.8mm	36mm
Diagonal Angle of View (degree)	99.90	83.00
Image Circle	35mm	35mm
Focal Length (mm)	18.00	24.00
Brand	Carl-zeiss	Sony
Name	Zeiss 18mm f/2.8 Milvus 2.8/18	Sony 24mm f/2 SSM Carl Zeiss Distagon T* SAL24F20Z
Weight (g)	675	555
Aperture (f)	2.80 - 22.00	2.00 - 22.00
Diaphragm Blades	9	9
Diaphragm Blades Type	rounded	rounded
Lens Construction	14 elements in 12 groups, including 4 Anomalous Partial Dispersion and 2 aspherical elements; Enhanced Zeiss T* anti-reflective coating	9 elements in 7 groups, including 2 aspherical and 2 ED elements
Diameter (mm)	102.3	78
Focus Details	Manual focus only	Rear focusing with Super Sonic wave Motor (SSM)