Comparison of Nikon 16-80mm f/2.8-4E ED VR DX AF-S Nikkor and Pentax 16-85mm f/3.5-5.6 ED DC WR DA

Attribute	Pentax 16-85mm f/3.5-5.6 ED DC WR DA ×	Nikon 16-80mm f/2.8-4E ED VR DX AF-S Nikkor ×
Aperture (f)	3.50 - 38.00	2.80 - 32.00
Filter Size (mm)	72	72
Notes	HD Coating, SP (Super Protect) Coating, Weather-Resistant, Quick-shift Focus, Filter Window	Image Stabilization (up to 4 stops correction). Included Accessories: Flexible Lens Pouch, Bayonet Lens Hood.
Closest Focus (m)	0.35	0.35
Magnification Ratio (x)	0.26	0.22
Zoom System	Rotary	Rotary
Type	Standard Zoom	Standard Zoom
APS Equivalent	24.5 - 130mm	24 - 120mm
Diaphragm Blades	7	7
Image Circle	APS-C	APS-C
Focal Length (mm)	16.00 - 85.00	16.00 - 80.00
Brand	Pentax	Nikon
Name	Pentax 16-85mm f/3.5-5.6 ED DC WR DA	Nikon 16-80mm f/2.8-4E ED VR DX AF-S Nikkor
Weight (g)	517	480
Diaphragm Blades Type	rounded	rounded
Lens Construction	16 elements in 12 groups, including 1 extra-low dispersion glass element and 3 aspherical elements	17 elements in 13 groups, with 4 ED and 3 aspherical elements; Nano Crystal Coat, Super Integrated Coating, Fluorine Coating
Diagonal Angle of View (degree)	19.00 - 83.00	20.00 - 83.00
Length (mm)	94	85.5
Diameter (mm)	78	80
Focus Details	Quick-Shift system for fast changing between auto and manual focusing, with ability to manually override focus at any point	Silent Wave Motor; Internal Focusing with AF/MF switch