Let's begin with the features of what the EOS 5D Mark II does not have: a built-in miniature lightning. To lighten shadows over short distances, as a control flash would in a wireless flash composite or as little "makeshift" such a rich forever, but the EOS 5D Mark II, one has to take just a slip-on or system flash (full but with the Scope of service and comfort of the E-TTL II technology). In addition to the designated Blitz-/Zubehörschuh there is still a so-called PC-sync socket for connecting studio flash units, etc. Other connections are available in the form of an HDMI interface (for playback in HDTV quality), an analog audio / Video output with selectable PAL / NTSC signal (3.5mm jack), a PictBridge-compatible USB 2.0 high speed interface (normally mini-B connector), a three-pin connector for an electrical cable release (a wireless remote release with the infrared remote control RC-1 and RC-5, and with the Wireless Controller LC-5 is possible) and a microphone input (for connecting a directional microphone, lapel microphone, etc. Canon EOS 5D Mark II [Photo: Media North] when films) Nikon COOLPIX L810 .
On the ground plug on the camera bottom will find the WLAN / WiFi WFT-E4 or the unit Batterie-/Multifunktionshandgriff BG-E6 to the camera. Anything found on the EOS 5D Mark II: a preview button and correct in any case, that the optical center of the axle, positioned tripod thread of metal that is far enough from the (lockable) battery compartment to even with a tripod quick change of lithium ion batteries from the new LP-E6 (1800 mAh now) to allow. Thanks to its built-in electronics (which of course complicates the manufacture of cheap no-name clones) are available on the battery-diagnosis function of the camera information on the exact remaining capacity / charge (in percentages), the number of trips since the last charge, the "whereabouts" of the battery (on the camera or in the BG-E6 grip) and the "Ladefreudigkeit" of the battery (ie, how many times the battery can be recharged until it has reached its end of life). If you have the batteries over their respective individual identification number (which is also transmitted to the camera) previously registered in the camera menu, such a diagnosis even in possession of several LP-E6 batteries possible.