Sony SAL-20mm f/2.8 AF Wide Angle Lens

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Excellent Accuracy
and Exceptional Depth of Field

Sony 20mm f/2.8 Lens The Sony SAL 20mm f/2.8, a wide-angle autofocus lens featuring excellent accuracy and exceptional depth of field. It dispenses an ultra-wide 94 viewing angle, corrects visual irregularity from around 10 inches on to infinity, and dispenses extreme field depth for intricate photographs that preserve their crisp focus in close in foreground and far off backgrounds.

When mounted on a Sony Alpha DSLR camera body, this delightful wide-angle lens accomplishes a 70-degree viewing angle with a 30mm focal length similar to a 35mm SLR film camera.

Amazing Visual Preciseness: Advanced adjusting techniques to fix optical distortion and to create visually precise images with minimum aberration--allowing the foreground and the background to both be represented as they were actually viewed. The lens features clear, sharp imaging: containing advanced optical coatings to inhibit internal reflection, achieving superb demarcation and clarity. There's deep field depth containing the aptitude to keep both the close foreground and the distant background in essential sharp focus.

The real lens elements move to increase AF speed and let you in on quick action shots. While conventional lenses close down their apertures using blades that can possibly create multi-sided forms, while the aperture blades inside this unique wide-angle lens create nearly a circle at the widest openings you'll employ for those poor-light shots, so those spotlight sources turn into a pleasurable circular defocused appearance.

The biggest down side is there's distance information for using the Sony flash system.

Aug 29, 2011. Typical internet price $ 600.  Announced Jun 15, 2006 ✓

Features

Compatibility Mounted on the Sony α (alpha) DSLR-A100 camera, this lens provides a 30mm focal length (35mm equivalent).

Rear Focusing Lens elements at the rear of the lens move to increase auto-focus speed and help you catch quick action.

7-blade Circular Aperture for pleasing defocused effects

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Specifications
Overview
Lens stylePrime lens  
Max Format Size 35mm FF  
Lens focal length20 mm  
Stabilization type No  
Camera mount Sony Alpha  
Angle of view 35mm format: 94 APS/Digital format: 70  
Aperture
Largest aperture opening F2.8  
Smallest aperture opening f/22.0  
Total diaphragm blades 7  
Aperture annotations circular aperture  
Optics
Total Elements 10  
Number of Groups 9  
Focusing
Minimum focus distance 0.25 m (9.84")  
Maximum magnification ratio 0.13 x  
Autofocus type Yes  
Lens motor Screw drive from camera  
Full time manual focus Unknown  
Focusing method Rear  
Lens distance scale Yes  
Depth of field scale Yes  
Physical
Overall weight285 g (0.63 lb) 10.1 oz  
Lens diameter 78 mm (3.07")  
Overall length 54 mm (2.11")  
Lens color Black  
Filter thread size 72 mm  
Lens hood included Yes  
Lens hood code petal hood SH0013  
Tripod collar included No

Lens Includes

Sony SAL-20F28 20mm f/2.8 AF Lens for Alpha & Minolta Maxxum Series
Front & Rear Lens Caps
SH0013 Lens Hood
1-Year Warranty

Accessories

Images
Sony 20mm f/2.8 Lens


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Sony SAL 20mm f/2.8 Lens Reviewed by Gene Wright on . Rating: 5