Comparison of Canon EF-S 15-85mm ƒ/3.5-5.6 IS USM and Pentax 16-85mm f/3.5-5.6 ED DC WR DA

Attribute	Canon EF-S 15-85mm ƒ/3.5-5.6 IS USM ×	Pentax 16-85mm f/3.5-5.6 ED DC WR DA ×
Aperture (f)	3.50 - 38.00	3.50 - 38.00
Filter Size (mm)	72	72
Notes	EF-S lens mount, exclusively for bodies with APS-C sensors. Image Stabilization up to 4-stops.	HD Coating, SP (Super Protect) Coating, Weather-Resistant, Quick-shift Focus, Filter Window
Closest Focus (m)	0.35	0.35
Magnification Ratio (x)	0.21	0.26
Zoom System	Rotary	Rotary
Type	Standard Zoom	Standard Zoom
APS Equivalent	24 - 136mm	24.5 - 130mm
Diaphragm Blades	7	7
Image Circle	APS-C	APS-C
Focal Length (mm)	15.00 - 85.00	16.00 - 85.00
Brand	Canon	Pentax
Name	Canon EF-S 15-85mm ƒ/3.5-5.6 IS USM	Pentax 16-85mm f/3.5-5.6 ED DC WR DA
Weight (g)	575	517
Diaphragm Blades Type	rounded	rounded
Lens Construction	17 elements in 12 groups, including UD and aspherical elements	16 elements in 12 groups, including 1 extra-low dispersion glass element and 3 aspherical elements
Diagonal Angle of View (degree)	18.40 - 84.50	19.00 - 83.00
Length (mm)	88	94
Diameter (mm)	82	78
Focus Details	Inner focusing; full-time manual focus and USM; AF/MF switch	Quick-Shift system for fast changing between auto and manual focusing, with ability to manually override focus at any point