• Support for the AF-S NIKKOR 800mm f/5.6E FL ED VR has been added.
• Subject tracking performance in AF-C (continuous-servo autofocus) autofocus mode with framing using the viewfinder has been improved.
• Frame output size has been changed from 95% to 100% when movie live view display is changed to "Information off" and an HDMI-compatible device is connected.
• An issue that caused the right edges of images to be somewhat white when captured at an Image area setting of DX (24x16) 1.5x withActive D-Lighting set to Off has been resolved.
• When the camera's shutter-release button was pressed repeatedly for uninterrupted shooting with the "Record to:" option in Camera Control Pro 2's Storage tab set to "PC+CARD", the camera would stop responding with displaying "Err" in its control panel.  This issue has been resolved.
• In some very rare cases, colors would change with shooting when white balance was set to a specific color temperature, as with Preset manual or Choose color temp.  This issue has been resolved.

• Support for the AF-S NIKKOR 800mm f/5.6E FL ED VR has been added.
• Subject tracking performance in AF-C (continuous-servo autofocus) autofocus mode with framing using the viewfinder has been improved.
• Gamut for Adobe RGB images displayed in the camera's monitor has been changed. This enables more vivid display of images.
• With live view photography in [M] (Manual) exposure mode, exposure preview was always on.  This issue has been resolved.
• In some very rare cases when certain memory cards were used, movie recording would stop, even when the time remaining display indicated remaining recording time.  This issue has been resolved.
• With shooting at an image quality setting of TIFF (RGB) and an image size setting of Small, the right edge of images contained a purple line.  This issue has been resolved.
• In some rare cases, images recorded in JPEG format could not be opened by some software applications.  This issue has been resolved.
• In some very rare cases, colors would change with shooting when white balance was set to a specific color temperature, as with Preset manual or Choose color temp.  This issue has been resolved.

D800: Modifications enabled with this upgrade of firmware, release date May 29, 2012

• When a still image was captured while viewing existing images in playback mode, the monitor turned off, the memory card access lamp glowed steadily, and, in some rare cases, the camera ceased to respond to operations. This issue has been resolved.
• When the Wireless Transmitter WT-4 was used with certain settings applied, RAW images were also transferred when Wireless transmitter > Transfer settings > Send file as was set to JPEG only. This issue has been resolved.
• A dark shadow sometimes appeared at the bottom edge of images captured with Active D-Lighting set to any option other than Off with Image area set to 5:4 (30x24). This issue has been resolved.