Comparison of Canon EF 28mm f/2.8 and Tamron 24mm f/2.8 Di III OSD M1:2 (Model F051)

Attribute	Tamron 24mm f/2.8 Di III OSD M1:2 (Model F051) ×	Canon EF 28mm f/2.8 ×
Diagonal Angle of View (degree)	84.10	75.00
Filter Size (mm)	67	52
Aperture (f)	2.80 - 22.00	2.80 - 22.00
Closest Focus (m)	0.12	0.3
Magnification Ratio (x)	0.5	0.13
Diaphragm Blades Type	circular	-
Type	Wide Prime	Wide Prime
APS Equivalent	-	45mm
Diaphragm Blades	7	5
Image Circle	Image Circle	35mm
Focal Length (mm)	24.00	28.00
Brand	Tamron	Canon
Name	Tamron 24mm f/2.8 Di III OSD M1:2 (Model F051)	Canon EF 28mm f/2.8
Weight (g)	215	185
Diameter (mm)	73	67
Length (mm)	64	42
Notes	Available mounts: Sony E-mount; Moisture-resistant construction; Included Accessories: Flower-shaped hood, lens caps.	-
Focus Details	Internal with OSD (Optimized Silent Drive) motor; Continuous manual focus mechanism	Focus Details
35mm Equivalent	1.5x: 36mm	-
Lens Construction	10 elements in 9 groups, including 1 GM (Glass Molded) aspherical and 3 LD (Low Dispersion) elements; BBAR coating; Fluorine coating	5 elements in 5 groups, including 1 aspherical element