Sigma AF 28mm F1.8 EX DG ASP Macro
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.
Spesifikasi Sigma AF 28mm F1.8 EX DG ASP Macro
| Lens Construction | 10 Elements in 9 Groups | ||||||||||
| Angle of View | 75.4º | ||||||||||
| Number of Diaphragm Blades | 9 | ||||||||||
| Mininum Aperture | f22 | ||||||||||
| Minimum Focusing Distance | 20 cm / 7.9 in | ||||||||||
| Filter Size (mm) | 77 | ||||||||||
| Maximum Magnifications | 1:2.9 | ||||||||||
| Dimensions (Diameter x Length) |
83.5 x 80 mm/3.3 x 3.1 in | ||||||||||
| Extended Dimensions | 88.9 mm / 3.5 in | ||||||||||
| Weight | 480g / 16.9oz. | ||||||||||
| Corresponding Mounts |
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| 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. |
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