Comparison of Canon EF-M 15-45mm f/3.5-6.3 IS STM and Samsung 16-50mm f/3.5-5.6 Power Zoom ED OIS NX

Attribute	Canon EF-M 15-45mm f/3.5-6.3 IS STM ×	Samsung 16-50mm f/3.5-5.6 Power Zoom ED OIS NX ×
Aperture (f)	3.50 - 40.00	3.50 - 22.00
Filter Size (mm)	49	43
Notes	Image Stabilization (3.5 stops); EF-M lens mount exclusively for Canon EOS M bodies.	Samsung NX Mount; Optical Image Stabilization; Power Zoom; i-Function. Available in black or white.
Closest Focus (m)	0.25	0.24
Magnification Ratio (x)	0.25	0.24
Zoom System	Rotary	Rotary
Type	Standard Zoom	Standard Zoom
APS Equivalent	24 - 72mm	24.6 - 77mm
Diaphragm Blades	7	7
Image Circle	APS-C	Samsung NX (APS-C)
Focal Length (mm)	15.00 - 45.00	16.00 - 50.00
Brand	Canon	Samsung
Name	Canon EF-M 15-45mm f/3.5-6.3 IS STM	Samsung 16-50mm f/3.5-5.6 Power Zoom ED OIS NX
Weight (g)	130	111
Diaphragm Blades Type	rounded	circular
Lens Construction	10 elements in 9 groups, including 3 aspherical elements	9 elements in 8 groups, including 1 ED and 4 aspherical elements
Diagonal Angle of View (degree)	33.70 - 84.50	31.40 - 82.60
Length (mm)	44.5	31
Diameter (mm)	60.9	64.8
Focus Details	Internal using Stepper Motor (STM); Full time manual focus	UPSM (Ultra-Precise Stepping Motor), silent autofocusing