Sony SAL-55300 规格指南 (en)

Compact Design, All-Around Versatility
This high-value 55-300mm zoom lens covers a wide range of medium to long-distance telephoto applications -- 
and its lightweight design lets you leave it on-camera or carry it easily as an accessory lens for special purposes 
(35mm equivalent: 82.5-450mm).
DT Lens Design
The SAL-55300 is specially designed for the APS-size CCD imager used in Sony 
α (Alpha) DSLR cameras.  APS-size 
sensors are smaller than a 35mm-format film frame, so the focal distance to cover the same field of view can be 
about 2/3 shorter -- allowing a more compact lens design.
Short Minimum Focusing Distance
With the ability to focus as closely as 4.5 feet (1.4m), this telephoto lens also lets you move in for dramatic shots of 
people, natural subjects and close-up details.
In-Camera Image Stabilization
A major reason for its compact, lightweight design is the benefit of Super SteadyShot® in-camera image 
stabilization, built into every Sony system DSLR -- and enabling accessory lenses to eliminate the extra weight and 
expense of in-lens stabilization mechanisms.
Multi-Element Design
The SAL-55300 is designed with 12 lens elements in 9 groups, with precision focusing performance and smooth 
zoom operation.
ED (Extra-low Dispersion) Glass
Because light of different wavelength (or color) bends at different angles when it passes through a lens, ED (Extra-
low Dispersion) Glass is used to eliminate chromatic aberration by correcting certain wavelengths of light for 
sharp, clear images with well defined colors.
Advisory when using DT lenses with full-frame (35mm equivalent) DSLR cameras.
α (alpha) lenses with the Digital Technology (DT) designation are ideal for use on APS-C size DSLR cameras 
and are not recommended for use with full frame DSLR camera bodies (such as the DSLR-A900). Although DT 
lenses can be used with full frame cameras, they can only realize a maximum of 11MP image size (when using the 
DSLR-A900), and are not guaranteed to provide accurate Auto Exposure performance.
Lens Type
Telephoto & Telephoto Zoom
Aperture (Max.)
f/4 - 5.6
Aperture (Min.)
f/22 - 29
Focal Length (35mm equivalent)
APS-C: 55-300mm (35mm Equivalent: 82.5-450 mm)
Filter Diameter
62 mm
Lens Groups-Elements
12 elements 9 groups including 1 ED glass element
Minimum Focus Distance
4' 6” (1.4 m)
Aperture Blade
7 blades (Circular aperture)
Aspheric Elements
No aspheric
Distance Encoder
Lens Weight
1 lb. 3 oz. (460g)
x 0.27
Super-value Sony 
α (Alpha) SAL-55300 telephoto zoom.  This compact, 
lightweight 55-300mm f4.5-5.6 Telephoto Zoom Lens covers the medium 
to long-distance telephoto range families use most often, with close 
4-1/2 foot (1.4m) minimum focusing distance for all-around utility -- plus 
ED (Extra-low Dispersion) glass to virtually eliminate color distortion 
(35mm equivalent: 82.5-450mm).