Sony is expanding its a (alpha) system of accessories to include the new HVL-F58AM flash unit with exceptional features for versatile and flexible external lighting control.

This new flash features a new and innovative Quick Shift Bounce system.
The flash head can pivot 90 degrees left and right on a horizontal axis in addition to the conventional up and down vertical adjustment. With this system, the camera and flash unit can keep the same orientation regardless of portrait or landscape shooting. This gives a higher degree of flexibility when arranging the direction of light.
For example, you can take full advantage of the flash unit’s built-in bounce card even during portrait shots since the flash head can maintain the same orientation as it would in the landscape position.

The HVL-F58AM flash unit features a maximum guide number of 58 at 105mm and ISO 100. It recycles (or recharges) in as little as five seconds, approximately 55% faster than the predecessor HVL-F56AM model, so you are ready to capture the next shot. And because it features a quiet recycle charge, there’s no whine to distract you from your subject.
also has a large, easy-to-read LCD screen that is about 13% larger than its predecessor’s.

The Sony HVL-F58AM flash unit will ship in September for about $500.
Via this Sony announcement.