Comparison of Pentax SMC P-DA 12-24mm f/4 ED AL IF and Samsung 12-24mm f/4 ED AL Schneider D-XENON

Attribute	Pentax SMC P-DA 12-24mm f/4 ED AL IF ×	Samsung 12-24mm f/4 ED AL Schneider D-XENON ×
Magnification Ratio (x)	0.12	0.12
Filter Size (mm)	77	77
Focus Details	Internal with "Quick Shift" AF/MF mechanism	Internal with "Quick Shift" AF/MF mechanism
Closest Focus (m)	0.3	0.3
Lens Construction	13 elements in 11 groups, including 2 aspherical and 1 ED elements	13 elements in 11 groups, including 2 aspherical and 1 ED elements
Length (mm)	87.5	87.5
Focal Length (mm)	12.00 - 24.00	12.00 - 24.00
Diagonal Angle of View (degree)	61.00 - 99.00	61.00 - 99.00
Brand	Pentax	Samsung
Image Circle	APS-C	APS-C
Name	Pentax SMC P-DA 12-24mm f/4 ED AL IF	Samsung 12-24mm f/4 ED AL Schneider D-XENON
Weight (g)	430	430
Type	Wide Zoom	Wide Zoom
Notes	Included Accessories: Lens Hood	-
APS Equivalent	18 - 36mm	18 - 36mm
Aperture (f)	4.00 - 22.00	4.00 - 22.00
Diaphragm Blades	8	8
Zoom System	Rotary	Rotary
Diameter (mm)	84	84