Comparison of Olympus 14-42mm ƒ/3.5-5.6 ED M.Zuiko Digital and Pentax SMC P-DA 40mm f/2.8 Limited

Attribute	Pentax SMC P-DA 40mm f/2.8 Limited ×	Olympus 14-42mm ƒ/3.5-5.6 ED M.Zuiko Digital ×
Aperture (f)	2.80 - 22.00	3.50 - 22.00
Filter Size (mm)	5	5
Notes	Distance scale	Retractable, with lock switch. Includes lens cap and rear cap.
Closest Focus (m)	0.4	0.25
Magnification Ratio (x)	0.13	0.24
Zoom System	-	Rotary
APS Equivalent	60mm	-
Focal Length (mm)	40.00	14.00 - 42.00
Diaphragm Blades	9	7
Brand	Pentax	Olympus
Image Circle	APS-C (but we found it didn't vignette on a 35mm film body)	Image Circle
Name	Pentax SMC P-DA 40mm f/2.8 Limited	Olympus 14-42mm ƒ/3.5-5.6 ED M.Zuiko Digital
Weight (g)	90	150
Type	Standard Prime	Standard Zoom
Diaphragm Blades Type	-	circular
Lens Construction	5 elements in 4 groups	9 elements in 8 groups, including ED and 2 aspherical elements
Diagonal Angle of View (degree)	39.00	29.00 - 75.00
Front Element Rotation	-	-
Diameter (mm)	63	62
Length (mm)	15	43.5
Focus Details	"Quick Shift" AF/MF mechanism	-
35mm Equivalent	-	28 - 84mm