(SR3) new Sony A850 and A900 firmware update in February. January 13, 2010 rumors 5 Comments Sony Japan is plannig to release a new firmware update for the Sony A850 and Sony A900 cameras. Sonys new firmware will reduce the noise level at Low and High ISO. Release expected for mid February! Andrea SonyAlphaRumors A850A900 **This post contains affiliate links and I will be compensated if you make a purchase after clicking through my links.