Comparison of Samsung 45mm ƒ/1.8 NX and Sony E 20mm f/2.8 SEL20F28

Attribute	Samsung 45mm ƒ/1.8 NX ×	Sony E 20mm f/2.8 SEL20F28 ×
Magnification Ratio (x)	0.13	0.12
Filter Size (mm)	43	49
Focus Details	Autofocus with manual focusing ring; AF/MF switch; Stepping motor for smooth, quiet AF	Autofocus with stepper motor (quiet AF for movie capture); Direct Manual Focus supported.
Closest Focus (m)	0.45	0.2
Lens Construction	7 elements in 6 groups	6 elements in 6 groups, includes 3 aspherical surfaces
Length (mm)	44.5	20.4
Focal Length (mm)	45.00	20.00
Diaphragm Blades Type	circular	rounded
Brand	Samsung	Sony
Image Circle	Samsung NX (APS-C)	APS-C (Sony E-Mount)
Name	Samsung 45mm ƒ/1.8 NX	Sony E 20mm f/2.8 SEL20F28
Weight (g)	115	69
Type	Telephoto Prime	Wide Prime
Notes	Samsung NX Mount; Included Accessories: lens caps, lens hood; i-Scene: Night, Portrait, Beauty shot, Children, Backlight, Sports	Sony E-Mount. Included Accessories: front and rear lens caps.
APS Equivalent	69.3mm	30mm
Aperture (f)	1.80 - 32.00	2.80 - 22.00
Diaphragm Blades	9	7
Diagonal Angle of View (degree)	34.70	-
Diameter (mm)	62	62.6