Comparison of Nikon 18-140mm ƒ/3.5-5.6G ED AF-S DX VR Nikkor and Pentax 28-105mm f/3.5-5.6 ED D FA HD DC WR

Attribute	Nikon 18-140mm ƒ/3.5-5.6G ED AF-S DX VR Nikkor ×	Pentax 28-105mm f/3.5-5.6 ED D FA HD DC WR ×
Aperture (f)	3.50 - 36.00	3.50 - 38.00
Filter Size (mm)	67	62
Notes	VR (Vibration Reduction) minimizes camera shake by offering a shutter speed equivalent to 4.0 stops faster	WR (Weather Resistant); Included Accessories: Lens Hood PH-RBC62, Lens Cap O-LC62, Lens Mount Cap K.
Closest Focus (m)	0.45	0.5
Magnification Ratio (x)	0.23	0.22
Zoom System	Rotary	Rotary
Type	Standard Zoom	Standard Zoom
APS Equivalent	27 - 210mm	43 - 161mm
Diaphragm Blades	7	9
Image Circle	APS-C	35mm
Focal Length (mm)	18.00 - 140.00	28.00 - 105.00
Brand	Nikon	Pentax
Name	Nikon 18-140mm ƒ/3.5-5.6G ED AF-S DX VR Nikkor	Pentax 28-105mm f/3.5-5.6 ED D FA HD DC WR
Weight (g)	490	463
Diaphragm Blades Type	rounded	rounded
Lens Construction	17 elements in 12 groups; including 1 ED glass and 1 aspherical element	15 elements in 11 groups, including 1 ED (Extra-low Dispersion) element, 1 anomalous-dispersion glass element and 2 aspherical elements; HD coating
Diagonal Angle of View (degree)	11.50 - 76.00	23.50 - 75.00
Length (mm)	97	86.5
Diameter (mm)	78	73
Focus Details	Internal; AF-S "Silent Wave" motor with full-time manual focus override feature (M/A Switch)	DC Motor; Internal with "Quick Shift" AF/MF mechanism