W is for... White balance

Daylight has a different color temperature at different times of the day (see K is for Kelvin), as do different types of artificial lighting. The white balance
system on your EOS DSLR enables the camera to correct color casts or tints under different lighting conditions, such as daylight and indoors, or under fluorescent lighting or flash. Out of the box, your camera's white balance will be set to Auto White Balance (AWB). This means the camera is always trying to normalize the color temperature. correcting warm orange (sunsets) or cool blue light towards more neutral tones.

The EOS 5DS and 5DS R feature a choice of AWB settings: the Ambience Priority setting, which is designed to retain some of the warm color tones from artificial light sources (similar to AWB on other EOS cameras), and the White Priority setting, which eliminates the warmth from tungsten lighting to produce color-neutral images.

The EOS 5DS and 5DS R give you a choice of a couple of Auto White Balance settings: Ambience Priority and White Priority.

White Balance

WIRELESS FLASH


There are two types of wireless flash control in the Canon system. The newest and most versatile is the Radio Wireless system, introduced with the Speedlite 600EX-RT. The original system is an optical pulsed light system. The Radio Wireless system enables the 600EX-RT to be used either as a radio master to trigger other flashguns, or as a radio slave, but in the latter setup, it must be controlled by another 600EX-RT unit or the Speedlite Transmitter ST-E3-RT.

WI-FI SHOOTING


When using the EOS 6D's built-in Wi-Fi module to transfer images, you may find that some files do not transfer. If this happens, it's most likely because they're Raw files; the EOS 6D Wi-Fi module can only transfer JPEG images wirelessly. If you wish to use the Wi-Fi functionality, but still shoot Raw files, make sure you set the camera to Raw+JPEG shooting. This way the camera can send the JPEG file, but you'll still have a Raw file to process later if required.