Comparison of Pentax SMC P-DA 16-45mm f/4 ED AL and Samsung 16-45mm f/4 ED AL Schneider D-XENON

Attribute	Pentax SMC P-DA 16-45mm f/4 ED AL ×	Samsung 16-45mm f/4 ED AL Schneider D-XENON ×
Aperture (f)	4.00 - 22.00	4.00 - 22.00
Filter Size (mm)	67	67
Notes	Included Accessories: Lens Hood	-
Closest Focus (m)	0.28	0.28
Magnification Ratio (x)	0.26	0.26
Focus Details	Internal with "Quick Shift" AF/MF mechanism	Internal with "Quick Shift" AF/MF mechanism
Length (mm)	92	92
Focal Length (mm)	16.00 - 45.00	16.00 - 45.00
APS Equivalent	24 - 67.5mm	24 - 67.5mm
Brand	Pentax	Samsung
Image Circle	APS-C	APS-C
Name	Pentax SMC P-DA 16-45mm f/4 ED AL	Samsung 16-45mm f/4 ED AL Schneider D-XENON
Weight (g)	365	365
Type	Standard Zoom	Standard Zoom
Diagonal Angle of View (degree)	35.00 - 83.00	35.00 - 83.00
Lens Construction	13 elements in 10 groups, including 2 aspherical and 1 ED elements	13 elements in 10 groups
Zoom System	Rotary	Rotary
Diameter (mm)	72	72