Comparison of Olympus 14-54mm f/2.8-3.5 Zuiko Digital and Pentax 17-70mm ƒ/4 AL IF SDM SMC DA

Attribute	Pentax 17-70mm ƒ/4 AL IF SDM SMC DA ×	Olympus 14-54mm f/2.8-3.5 Zuiko Digital ×
Zoom System	Rotary	Rotary
Aperture (f)	4.00 - 22.00	2.80 - 22.00
Diagonal Angle of View (degree)	23.00 - 79.00	23.00 - 75.00
Filter Size (mm)	67	67
Notes	Included Accessories: Lens Hood	Includes Lens Hood (LH-70), Lens Case (LSC-0816); Compatible with TC-14 Teleconverter and EX-25 Extension Tube
Focus Details	Internal; SDM with Quick-shift Focus System	-
Type	Standard Zoom	Standard Zoom
Diaphragm Blades	7	7
Lens Construction	17 elements in 12 groups	15 elements in 11 groups, including 3 asperical elements
Image Circle	APS-C	Image Circle
Focal Length (mm)	17.00 - 70.00	14.00 - 54.00
Brand	Pentax	Olympus
Name	Pentax 17-70mm ƒ/4 AL IF SDM SMC DA	Olympus 14-54mm f/2.8-3.5 Zuiko Digital
Weight (g)	485	435
Diameter (mm)	75	73.5
Length (mm)	93.5	88.5
35mm Equivalent	-	28 - 108mm
Magnification Ratio (x)	0.31	0.26
APS Equivalent	25.5 - 105mm	-
Closest Focus (m)	0.28	0.22