With the capability to focus quickly and zoom from super wide angle to wide angle, the SAL-1118 zoom lens captures interior scenes with greater flexibility and handles fast action in close environments. Its DT design is ideally suited for the APS-size CCD imager of your α DSLR camera. And its 35mm-equivalent zoom range of 16.5mm to 27mm gives you wide latitude in framing and composition. Please note: DT lenses are not recommended for use with the DSLR-A900.

Features:
With the capability to focus quickly and zoom from super-wide-angle to wide-angle, this lens captures interior scenes with greater flexibility and handles fast action in close environments. Its DT design is ideally suited for the APS-size CCD imager of the Sony® α (alpha) DSLR-A100 camera — and its 35mm-equivalent zoom range of 16.5mm to 27mm gives you wide latitude in framing and composition.

Internal Focusing System:
Lens elements at the rear of the optical system move, allowing rapid auto-focus response.

Aspherical Lens Elements:
Aspherical elements correct frame distortion to provide more visually accurate super-wide-angle shots.

ED (Extra-low Dispersion) Glass:
ED Glass lenses minimize flare and greatly reduce chromatic aberration, giving you photos with sharper focus and more accurate color separation.

Circular Aperture:
In low-light shots or nightscapes, out-of-focus light sources have a pleasing circular defocused effect.

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Reviews

Sony SAL-1118 DT 11-18mm f4.5-5.6 lens review by cameralabs.com

The Sony DT 11-18mm delivers an ultra wide angle range which perfectly complements the standard DT 18-70mm kit lens. It essentially takes over where the kit lens stops, capturing a progressively wider field of view until you find yourself at 11mm and enjoying 104 degree coverage. Certainly if you’ve ever zoomed-out your Alpha general purpose lens and wished it went wider still, then this is a lens you should be considering very seriously.

Sony 11-18mm f/4.5-5.6 DT ( SAL-1118 ) – Review / Test Report

Similar to its Tamron sister lens the Sony 11-18mm f/4.5-5.6 DT does not convince. At 11mm the critical corner performance is absent and the hefty amount of CAs and pronounced distortions don’t make things any better here. The situation is better at 14mm and 18mm but then you don’t really want to invest into an ultra-wide zoom lens just to enjoy the performance at the “long” end of the zoom range. On the positive side vignetting is very well controlled and the build quality is relatively fine. The lens had its time during the 6mp DSLR era but this is history – today it is a better idea to have a deeper look at one of the Sigmas (AF 10-20mm f/4-5.6 EX, AF 12-24mm f/4.5-5.6 EX) in this range.