Sony SLT-A77VM 2011 α Lens and Lens Accessory Brochure and Specifica - Page 11

Contrast (%) Contrast (%) Contrast (%) Contrast (%) M mode , 1/250 sec., F5.6, ISO 400, Manual white balance Mid-range zoom DT 16-50mm F2.8 SSM SAL1650 At 16 mm 100 80 60 40 20 Aspherical lens ED glass At 50 mm 100 80 60 40 20 0 3 6 9 12 Distance from optical center of lens (mm) 0 3 6 9 12 Distance from optical center of lens (mm) Spatial frequency Max. aperture R T 10 line pairs/mm F8 aperture R T 30 line pairs/mm R: Radial values T: Tangential values Three ED glass elements and two aspherical elements for superior image quality Bright constant F2.8 maximum aperture SSM (Super Sonic wave Motor) for fast, quiet autofocus operation Circular aperture for attractive defocusing Dust and weather resistant design 35mm equivalent focal length: 24-75mm The SAL1650 packs first-class optical performance and a versatile zoom range into a lens that is remarkably compact and lightweight. At the wide end you have a 16mm focal length that is ideal for interiors, sweeping landscapes, or creating visual impact with powerful perspective. Zoom out to the 50mm end for mid-range telephoto reach that can bring details and distant subjects closer. What's more, you have a constant F2.8 maximum aperture throughout the entire zoom range. That makes shooting in low light easy, especially when the lens is used with a body that includes SteadyShot INSIDE™ body-integrated image stabilization. A large maximum aperture also provides plenty of margin to stop down for increased depth of field or to freeze fast motion. The SAL1650 additionally features a circular aperture that, combined with the F2.8 maximum aperture, contributes to beautiful defocusing effects. • Weight (approx): 577 g • Dimensions (Dia. X L): 81 x 88 mm • Max. magnification ratio: 0.2x 20 M mode, 1/100 sec., F8, ISO 200, Daylight white balance, Landscape Creative Style; Photo: Norifumi Inagaki Mid-range zoom DT 16-105mm F3.5-5.6 SAL16105 At 16 mm 100 80 60 40 20 Aspherical lens ED glass At 105 mm 100 80 60 40 20 0 3 6 9 12 Distance from optical center of lens (mm) 0 3 6 9 12 Distance from optical center of lens (mm) Spatial frequency Max. aperture R T 10 line pairs/mm F8 aperture R T 30 line pairs/mm R: Radial values T: Tangential values One ED glass element and two aspherical elements for superior image quality High resolution and contrast throughout zoom range Circular aperture for attractive defocusing Focus ring with auto clutch does not rotate during autofocus 35mm equivalent focal length: 24-157.5mm Zoom range can be a very subjective and personal choice, hinging on individual shooting style and preferred subjects. The 16-105mm range of this lens is a "sweet spot" for many photographers, wide enough at the 16mm end to capture indoor scenes and long enough at 105mm to fill the frame with relatively distant subjects. Comfortable handling is another plus, facilitated by a compact, lightweight design and an autoclutch mechanism that prevents focus ring rotation during autofocus operation, so you can comfortably cradle the lens in your hand while shooting. Of course comfort isn't everything. A precision optical design delivers superb image quality throughout the entire zoom range. • Weight (approx): 470 g • Dimensions (Dia. x L): 72 x 83 mm • Max. magnification ratio: 0.23x 21