Amazing Visual Accuracy - Advanced correcting techniques for optical distortion create visually accurate shots with minimum aberration so foreground and background are both represented as actually seen.
Clear, Sharp Imaging - With sophisticated optical coating to prevent internal reflection, this wide-angle lens achieves superb clarity and definition.
Deep Depth of Field - The ability to keep both close foreground and distant background in critically sharp focus.
Rear Focusing System - Lens elements at the rear of the lens move to increase auto-focus speed and help you catch quick action.
Circular Aperture - Conventional lenses close their apertures with blades that can create multi-sided shapes but the aperture blades of this superb wide-angle lens form a near circle at the wide openings you'll use for low-light shots, so spot-light sources have a pleasing circular defocused effect.
- Lens Type: Wide Angle & Wide Angle Zoom
- Aperture (Max.): f/2.8
- Aperture (Min.): f/22
- Filter Diameter: 72mm
- Lens Groups-Elements: 9 groups, 10 elements
- Minimum Focus Distance: 9.6" (25cm)
- Aspheric Elements: no aspheric
- Depth-of-Field: Yes
- Distance Scale: Yes
- Aperture Blade: 7 aperture blades
- Focal Length (35mm equivalent): APS: 30mm (35mm Equivalent: 20mm)
- Magnification: x 0.13
Weights and Measurements
- Dimensions (Approx.): 3 1/8 x 2 1/8" (78 x 53.5mm)
- Weight (Approx.): 10oz (285g)
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