Comparison of Canon EF 24mm ƒ/2.8 IS USM and Canon EF 28mm ƒ/2.8 IS USM

Attribute	Canon EF 24mm ƒ/2.8 IS USM ×	Canon EF 28mm ƒ/2.8 IS USM ×
Filter Size (mm)	58	58
Notes	Image Stabilizer (up to 4-stops of correction).	Image Stabilizer (up to 4-stops of correction).
Closest Focus (m)	0.2	0.23
Magnification Ratio (x)	0.23	0.2
Type	Wide Prime	Wide Prime
Length (mm)	55.7	51.5
APS Equivalent	38mm	45mm
Diagonal Angle of View (degree)	84.00	75.00
Image Circle	35mm	35mm
Focal Length (mm)	24.00	28.00
Brand	Canon	Canon
Name	Canon EF 24mm ƒ/2.8 IS USM	Canon EF 28mm ƒ/2.8 IS USM
Weight (g)	280	260
Aperture (f)	2.80 - 22.00	2.80 - 22.00
Diaphragm Blades	7	7
Diaphragm Blades Type	circular	circular
Lens Construction	11 elements in 9 groups, including aspherical lens elements	9 elements in 7 groups, including aspherical lens elements
Diameter (mm)	68.4	68.4
Focus Details	Rear-focusing; USM with full-time manual-focus override	Rear-focusing; USM with full-time manual-focus override