A precision zoom lens with bright aperture and fast, quiet auto-focus response. Specially designed for the APS-size CCD imager of the SonyŽ α (alpha) DSLR-A100 camera, this superb G-Series zoom lens covers a broad range of frequent telephoto shooting situations. Its 35mm-equivalent range of 105-300mm zooming, fast f/2.8 aperture and quiet, high-speed SSM (Super Sonic wave Motor) auto-focus precision makes it ideal for long-distance sports and wildlife photography.
Feature List
SSM (Super Sonic wave Motor):
A built-in lens motor for faster automatic focusing with high torque at low speed, quick start/stop response, and quiet, smooth operation.

ED (Extra-low Dispersion) Glass:
Four precision ED Glass lenses correct chromatic aberrations and deliver visually accurate results even at full telephoto zoom extension.

Internal Focusing System:
Internal lens elements move, so the overall length does not change -- creating a zoom lens that focuses more quickly and doesn’t affect the balance of your camera.

2 DMF (Direct Manual Focus) Modes:
Allow you to quickly revert to manual focus by just turning the manual focus ring of the lens.

Versatile Focus Hold:
Three focus hold buttons in different lens locations, plus electronic slider focus range selector switch.
 

Specifications

G Series 70-200mm f/2.8 G Telephoto Zoom
SSM (Super Sonic wave Motor) for fast auto-focus
4 ED Glass Elements for greater visual accuracy
Fast Internal Focusing -- lens length does not change
2 DMF (Direct Manual Focus) Modes
Versatile focus hold with 3 buttons on lens
Electronic slider focus range selector switch
Focal Length – 35mm Equivalent: 70 – 200 mm
Focal Length – APS: 105 – 300 mm
Angle of View – 35mm Equivalent: 34ﾟ-12ﾟ30'
Angle of View – APS: 23ﾟ - 8ﾟ
Min Focus Distance: 4 ft (1.2 m)
Aperture – Maximum: f2.8
Aperture – Minimum: f32
Maximum Magnification: 0.21X
Lens Construction: 19 elements in 16 groups with 9 aperture blades
Filter Diameter: 77 mm
Dimensions: 3-1/2 x 7-3/4” (87 x 196.5 mm)
Weight: 2 lb 15.3 oz (1.34 kg)
Supplied Accessories: Front and rear lens cap, SH0010 lens hood