Comparison of Canon EF-M 22mm ƒ/2 STM and Samsung 30mm f/2 NX

Attribute	Canon EF-M 22mm ƒ/2 STM ×	Samsung 30mm f/2 NX ×
Magnification Ratio (x)	0.21	0.16
Filter Size (mm)	43	43
Focus Details	Internal, using Stepper Motor (STM); Fly-by-wire manual focus.	Autofocus with manual focusing ring
Closest Focus (m)	0.15	0.25
Lens Construction	7 elements in 6 groups, including 1 aspheric element	5 elements in 5 groups, including 1 aspherical
Length (mm)	23.7	21.5
Focal Length (mm)	22.00	30.00
Diaphragm Blades Type	rounded	-
Brand	Canon	Samsung
Image Circle	APS-C	Samsung NX (APS-C)
Name	Canon EF-M 22mm ƒ/2 STM	Samsung 30mm f/2 NX
Weight (g)	105	85
Type	Wide Prime	Standard Prime
Notes	EF-M lens mount exclusively for EOS M bodies.	Samsung NX Mount. Included Accessories: Lens Caps, Soft Case; Lens Hood Optional.
APS Equivalent	35mm	46mm
Aperture (f)	2.00 - 22.00	2.00 - 22.00
Diaphragm Blades	7	7
Diagonal Angle of View (degree)	63.50	50.20
Diameter (mm)	60.9	61.5