Comparison of Canon EF-S 18-55mm f/3.5-5.6 USM and Pentax SMC P-FA J 28-80mm f/3.5-5.6 AL

Attribute	Canon EF-S 18-55mm f/3.5-5.6 USM ×	Pentax SMC P-FA J 28-80mm f/3.5-5.6 AL ×
Closest Focus (m)	0.28	0.4
Magnification Ratio (x)	0.28	0.25
Length (mm)	66	66
Focus Details	Inner focusing; USM	-
Zoom System	Rotary	Rotary
Diaphragm Blades	6	-
Image Circle	APS-C	35mm
Aperture (f)	3.50 - 38.00	3.50 - 38.00
Name	Canon EF-S 18-55mm f/3.5-5.6 USM	Pentax SMC P-FA J 28-80mm f/3.5-5.6 AL
Brand	Canon	Pentax
Weight (g)	190	179
Type	Standard Zoom	Standard Zoom
Lens Construction	11 elements in 9 groups; 1 aspherical element	8 elements in 8 groups
Filter Size (mm)	58	58
Focal Length (mm)	18.00 - 55.00	28.00 - 80.00
Notes	EF-S lens mount, exclusively for EOS 20D, Digital Rebel, and newer bodies with APS-C sensors.	-
APS Equivalent	29 - 88mm	42 - 120mm
Diagonal Angle of View (degree)	27.80 - 75.30	30.50 - 75.00
Diameter (mm)	69	64