Comparison of Canon EF 24-70mm ƒ/2.8L II USM and Pentax 24-70mm f/2.8ED D FA HD SDM WR

Attribute	Canon EF 24-70mm ƒ/2.8L II USM ×	Pentax 24-70mm f/2.8ED D FA HD SDM WR ×
Aperture (f)	2.80 - 22.00	2.80 - 22.00
Filter Size (mm)	82	82
Notes	Weather sealing protects against dust and moisture, while a fluorine-coated front and rear elements are easy to clean.	Weather Resistant; Included Accessories: Lens hood, lens caps and soft case
Closest Focus (m)	0.38	0.38
Magnification Ratio (x)	0.21	0.2
Zoom System	Rotating, with zoom lock lever	Rotary
Type	Standard Zoom	Standard Zoom
APS Equivalent	38 - 112mm	37 - 107mm
Diaphragm Blades	9	9
Image Circle	35mm	35mm
Focal Length (mm)	24.00 - 70.00	24.00 - 70.00
Brand	Canon	Pentax
Name	Canon EF 24-70mm ƒ/2.8L II USM	Pentax 24-70mm f/2.8ED D FA HD SDM WR
Weight (g)	805	787
Diaphragm Blades Type	rounded	rounded
Lens Construction	18 elements in 13 groups, including 1 Super UD and 2 UD elements	17 elements in 12 groups, including 3 ED and 4 aspherical elements, HD coating
Diagonal Angle of View (degree)	34.00 - 84.00	34.50 - 84.00
Length (mm)	113	109.5
Diameter (mm)	88.5	88.5
Focus Details	Inner focusing; full-time manual focus and USM	SDM (Supersonic Direct-drive Motor) with Quick-shift focus system