Focal length of 28mm
Maximum aperture of f/1.8
Angle of view of 75.4 û
Minimum focusing distance of 7.9Ó
Maximum magnification ratio of 1:2.9
9-blade aperture diaphragm
10 elements arranged in 9 groups
28mm f/1.8 EX Aspherical DG DF Macro Prime Lens
28mm f/1.8 EX Aspherical DG DF Macro Prime Lens offers an angle of view of 75.4 û and has a close focusing distance of 7.9Ó offering beautiful wide angle views plus close up photography opportunities as well. The fast maximum aperture is f/1.8 throwing open tremendous low light photography opportunities. The lens has a 9-blade aperture diaphragm and 10 elements arranged in 9 groups.
For many photographers, the 28mm focal length is the ideal general purpose wide angle lens. Its wide enough for most scenic and landscape assignments and when used indoors for building interiors or groups of people, its wide angle effect is not as extreme as with shorter focal length lenses. A forgiving wide angle lens for newcomers to wide angle photography and highly effective for professionals with its EX construction and fast 1.8 aperture. This high speed performance is excellent for photojournalists doing low-light documentary photography and its use of two aspherical lens elements assures excellent optical performance.
10 Elements in 9 Groups
Angle of View
Number of Diaphragm Blades
Minimum Focusing Distance
20 cm / 7.9 in
Filter Size (mm)
(Diameter x Length)
83.5 x 80 mm/3.3 x 3.1 in
88.9 mm / 3.5 in
480g / 16.9oz.
ASP - Aspherical
EX - EX Lens
DG - DG for Digital
D - Distance Information Function
(3) Pentax mount lenses cannot be used with SF series AF cameras.
* Nikon Mount: NO built in motor lens: NOT compatible with D40, D40x, D60, D3000, D5000
* The appearance, specifications, and the like of the product are subject to change for improvement without notice.
Front & rear caps