Sony annuncia l’uscita della nuova ottica Sony 500mm G SSM Telephoto.
http://photographic-central.blogspot.com/2012/02/sony-alpha-500mm-g-telephoto-announced.html
From Sony Europe:
Closer encounters with new 500mm super-telephoto
8 February 2012

Rugged, pro-focused SAL500F40G lens from Sony for A-mount SLT and DSLR cameras
* Longest-ever focal length G Lens from Sony
* Bright F4.0 aperture for superior light gathering
* Nano AR Coating on optical surfaces for flawless still images and HD video
* Compatible with SteadyShot INSIDE featured in all a cameras
* New SSM drive circuit for quick, accurate autofocus
* Rugged dust- and moisture-resistant design: ideal partner for SLT-A77
* Enhanced handling and operability