Comparison of Canon EF 24mm f/1.4L II USM and Zeiss 21mm f/2.8 Milvus 2.8/21

Attribute	Zeiss 21mm f/2.8 Milvus 2.8/21 ×	Canon EF 24mm f/1.4L II USM ×
Diaphragm Blades Type	rounded	circular
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.	Lens hood and pouch supplied.
Aperture (f)	2.80 - 22.00	1.40 - 22.00
Magnification Ratio (x)	0.2	0.17
Filter Size (mm)	82	77
APS-C Equivalent	-	38mm
Type	Wide Prime	Wide Prime
Diaphragm Blades	9	8
Lens Construction	16 elements in 13 groups, including 4 Anomalous Partial Dispersion elements; Enhanced Zeiss T* anti-reflective coating	13 elements in 10 groups, including 2 UD elements
Image Circle	35mm	35mm
Focal Length (mm)	21.00	24.00
Brand	Carl-zeiss	Canon
Name	Zeiss 21mm f/2.8 Milvus 2.8/21	Canon EF 24mm f/1.4L II USM
Weight (g)	735	650
Diagonal Angle of View (degree)	90.00	84.00
Focus Details	Manual focus only	Rear focusing; full-time manual focus and USM
Diameter (mm)	95.3	93.5
Length (mm)	92.5	86.9
APS Equivalent	1.5x: 31.5mm; 1.6x: 33.6mm	-
Closest Focus (m)	0.22	0.25