Comparison of Canon EF 24-85mm f/3.5-4.5 USM and Pentax SMC P-FA 24-90mm f/3.5-4.5 AL IF

Attribute	Canon EF 24-85mm f/3.5-4.5 USM ×	Pentax SMC P-FA 24-90mm f/3.5-4.5 AL IF ×
Aperture (f)	3.50 - 32.00	3.50 - 32.00
Magnification Ratio (x)	0.16	0.18
Filter Size (mm)	67	67
Focus Details	Inner focusing; USM	-
Closest Focus (m)	0.5	0.5
Lens Construction	15 elements in 12 groups, including 1 aspherical	13 elements in 11 groups, including 2 aspherical elements
Length (mm)	69.5	74
Focal Length (mm)	24.00 - 85.00	24.00 - 90.00
APS Equivalent	38 - 136mm	36 - 135mm
Brand	Canon	Pentax
Image Circle	35mm	35mm
Name	Canon EF 24-85mm f/3.5-4.5 USM	Pentax SMC P-FA 24-90mm f/3.5-4.5 AL IF
Weight (g)	380	355
Type	Standard Zoom	Standard Zoom
Diagonal Angle of View (degree)	28.50 - 84.00	27.00 - 84.00
Diaphragm Blades	6	-
Zoom System	Rotary	Rotary
Diameter (mm)	73	71