http://www.ricoh-imaging.co.jp/english/support/digital/gr3_s.html
1. Improved AF performance in dark places and low contrast.
2. Correspond to Image Sync connection.
*Please use with Image Sync version (2.0.4) or later.
*With Image Sync version (2.0.4), you can only view and transfer images via a wireless LAN connection.
3. Improved stability for general performance.
剛剛晃了一下發現gr3的韌體更新了
看起來除了開始可以用wifi以外
也把曖昧的暗部對焦也改了