Comparison of Canon EF 11-24mm ƒ/4L USM and Tamron SP AF 14mm f/2.8 Aspherical IF

Attribute	Canon EF 11-24mm ƒ/4L USM ×	Tamron SP AF 14mm f/2.8 Aspherical IF ×
Magnification Ratio (x)	0.16	0.15
Notes	Weather resistant; Subwavelength Coating (SWC) and Air Sphere Coating (ASC); Fluorine coating on front and rear lens surfaces; Built-in lens hood.	Available AF Mounts: Canon, Minolta, Nikon, Pentax; Included Accessories: Lens Hood, Case
Focus Details	Internal with ring USM; Full time manual focus	Internal
Closest Focus (m)	0.28	0.2
Lens Construction	16 elements in 11 groups, including 1 Super UD, 1 UD and 4 aspherical elements	14 elements in 12 groups, including 2 hybrid aspherical elements
Length (mm)	132	89
Focal Length (mm)	11.00 - 24.00	14.00
Diagonal Angle of View (degree)	84.00 - 126.10	113.80
Brand	Canon	Tamron
Image Circle	35mm	35mm
Name	Canon EF 11-24mm ƒ/4L USM	Tamron SP AF 14mm f/2.8 Aspherical IF
Weight (g)	1180	661
Type	Wide Zoom	Wide Prime
Aperture (f)	4.00 - 22.00	2.80 - 22.00
APS Equivalent	17.6 - 38.4mm	1.5x: 21mm; 1.6x: 22.4mm
Diaphragm Blades Type	rounded	-
Diaphragm Blades	9	5
Zoom System	Rotary	-
Diameter (mm)	108	87