Comparison of Nikon 28-80mm f/3.3-5.6G AF Nikkor and Pentax SMC P-FA J 28-80mm f/3.5-5.6 AL

Attribute	Nikon 28-80mm f/3.3-5.6G AF Nikkor ×	Pentax SMC P-FA J 28-80mm f/3.5-5.6 AL ×
Aperture (f)	3.30 - 22.00	3.50 - 38.00
Magnification Ratio (x)	0.29	0.25
Filter Size (mm)	58	58
Front Element Rotation	-	-
Closest Focus (m)	0.35	0.4
Lens Construction	6 elements in 6 groups, including 1 aspherical element	8 elements in 8 groups
Length (mm)	64	66
Focal Length (mm)	28.00 - 80.00	28.00 - 80.00
APS Equivalent	42 - 120mm	42 - 120mm
Brand	Nikon	Pentax
Image Circle	35mm	35mm
Name	Nikon 28-80mm f/3.3-5.6G AF Nikkor	Pentax SMC P-FA J 28-80mm f/3.5-5.6 AL
Weight (g)	196	179
Type	Standard Zoom	Standard Zoom
Diagonal Angle of View (degree)	30.00 - 74.00	30.50 - 75.00
Diaphragm Blades	7	-
Zoom System	Rotary	Rotary
Diameter (mm)	66	64