Comparison of Canon EF-M 22mm ƒ/2 STM and Olympus 25mm f/2.8 Zuiko Digital

Attribute	Canon EF-M 22mm ƒ/2 STM ×	Olympus 25mm f/2.8 Zuiko Digital ×
Notes	EF-M lens mount exclusively for EOS M bodies.	Included Accessories: Lens cap (LC-43), rear cap (LR-1). Screw-in aluminum lens cap, and lens hood optional.
Magnification Ratio (x)	0.21	0.19
Filter Size (mm)	43	43
Focus Details	Internal, using Stepper Motor (STM); Fly-by-wire manual focus.	-
Closest Focus (m)	0.15	0.2
Diagonal Angle of View (degree)	63.50	47.00
Lens Construction	7 elements in 6 groups, including 1 aspheric element	5 elements in 4 groups, including aspherical element
Focal Length (mm)	22.00	25.00
APS Equivalent	35mm	-
Brand	Canon	Olympus
Image Circle	APS-C	Image Circle
Name	Canon EF-M 22mm ƒ/2 STM	Olympus 25mm f/2.8 Zuiko Digital
Weight (g)	105	95
Type	Wide Prime	Standard Prime
Aperture (f)	2.00 - 22.00	2.80 - 22.00
Diaphragm Blades	7	7
Diaphragm Blades Type	rounded	circular
Length (mm)	23.7	23.5
35mm Equivalent	-	50mm
Diameter (mm)	60.9	64