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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.

High Performance AF

Newly developed circuit board in the internal focusing mechanism achieves approx. 4 times 

faster object tracking performance during autofocusing than lenses using conventional circuit 

boards. This speed makes the lens perfect for capturing fast moving subjects like athletes and 

wild animals, including birds. 

Nano AR Coating

Sony’s Nano AR Coating with nano-precision structure contributes to high-quality images 

with reduced ghosting and flare. This proprietary Sony coating technology features aligned 

microscopic asperities that reduce the effects of the reflective interfacial boundary on the 

surface of the lens, thus dramatically reducing the amount of undesirable reflections entering the 

lens. 

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.

Dust and moisture resistance

The dust and moisture resistance design makes this lens appropriate for heavy-duty outdoor use, 

especially when combined with a DSLR that employs weather resistant measures. 

Lightweight Design

A strong, light magnesium lens barrel makes shooting more comfortable even on long wildlife or 

sports assignments.

For definitive long-shot precision and spectacular portraits even in 

low light, this professional G-Series lens raises the standard of DLSR 

performance.  Its 35mm-equivalent 750mm focal length and ultra-

bright f4.0 aperture combine for superb results in virtually any light -- 

and its improved high-speed SSM (Super Sonic wave Motor) auto-focus 

is fast, accurate and quiet. Plus, the exclusive AR Nano Coating by on 

lens surfaces cuts reflections for extremely low ghosting and flare.

SAL500F40G

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