Sony announces A900/A850 firmware upgrade

The previously rumored firmware upgrade for Sony A900/A850 DSLR cameras is now available online.

Full press release after the break:

Creative shooting enhancements for full-frame α cameras

A free firmware upgrade refines shooting responses and creative options with the α900 and α850 35mm full-frame DSLR cameras by Sony.

All new and existing customers are advised to install the upgrade that’s available for download from the ‘Support’ area of the Sony web site.

Autofocus is quicker and more responsive than ever, thanks to improved AF motor control and smarter distance detection of out-of-focus objects.

Creative options are extended by a broadened range of exposure value (EV) compensation settings, now increased from ±3EV to ±5EV. Selected compensation value is displayed in the navigation display on the main LCD screen of both cameras. This boosted EV compensation range gives extra
headroom when composing extremely high- or low-key images.

Exposure bracketing range has also been increased from a maximum of 4.0EV (three shots at -2EV, 0EV, +2EV) to a maximum of 6.0EV (-3EV, 0EV, +3EV). This wider range gives added flexibility when capturing multiple frames at different exposure values – for example when acquiring images for the creation of powerful post-shooting HDR effects.

As a further refinement, a new menu option allows shutter release to be enabled, even when the camera body doesn’t detect an attached lens. It’s useful for specialist applications such as astrophotography when the camera is attached to a telescope.

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