The Sony SAL-300F28G 300mm f/2.8 APO G SSM Lens is a professional level telephoto lens with wide aperture and fast auto-focus response. Its 35mm-equivalent range of 450mm, a fast f/2.8 aperture and quiet, high-speed SSM (SuperSonic-Wave Motor) auto-focus precision makes it ideal for long-distance sports and wildlife photography.
With a full range of functions geared to the professional photographer, this lens provides sharp, color-free images across the entire film area at all apertures. High-quality multi-coatings and internal baffles increase transmittance and reduce flare to preserve contrast.
The heart of this zoom lens is the finest optical glass reserved for all G-series lenses. This lens uses thirteen finely crafted elements, including three AD (anomalous dispersion) lenses, to virtually eliminate aberrations and curvature of field.
Note: When used with Minolta cameras, AF can only be used with Maxxum 7 or later models (Maxxum 5, 4, 3, etc.). The Maxxum 9 can be updated directly by Minolta to be fully compatible with SSM lenses.
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
Three precision ED Glass lenses correct chromatic aberrations to provide extremely sharp telephoto images distant subjects as well as dramatic sports close-ups.
Internal Focusing System
Internal lens elements move, so the overall length does not change -- creating an auto-focus zoom lens that 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
Four focus hold buttons in different lens locations, plus electronic slider focus range selector switch.
A strong, light magnesium lens barrel makes shooting more comfortable even on long wildlife or sports assignments.
Type G Series 300mm f/2.8 G Super Telephoto Design SSM (Super Sonic wave Motor) for fast auto-focus Modes 2 DMF (Direct Manual Focus) Modes Elements 3 ED Glass Elements for greater visual accuracy Focusing
Fast Internal Focusing, lens length does not change
Versatile focus hold with 4 buttons on lens
Electronic slider focus range selector switch
35mm Equivalent: 300 mm
APS: 450 mm
Angle of View
35mm Equivalent: 8 deg 10'
APS: 5 deg - 20'
Min Focus Distance 6.7 ft (2.0 m) Aperture Maximum f2.8 Aperture Minimum f32 Maximum Magnification 0.18x Lens Construction 13 elements in 12 groups with 9 aperture blades Filter Diameter 42 mm (internal) Lens Dimensions 5-16" x 9-3/8" (122 mm x 242.5 mm) Lens Weight 5 lb 5 oz (2.31 kg)