Canon EOS Digital Rebel XT White Paper

Also see for EOS REBEL XT: Instruction manual Instruction manual Firmware update procedures

Contents

Canon EOS Digital Rebel XT White Paper Manual pdf 15 page image

III. DISCUSSION 15ControlsFor a custom WB setting, first take a picture of a white subject serving as the whitebalance standard. Then, set the custom WB mode on the onscreen menu and specifythat image.In a substantial upgrade from the EOS Digital Rebel camera, the flash color datatransmission function from the EOS 20D enables the built-in flash or an accessorySpeedlite 580EX to provide flash color information which is used in exposurecalculation when the white balance is set to “AWB” or “Flash.”The EOS Digital Rebel XT camera shares its whitebalance correction and bracketing functions with theEOS-1D Mark II, EOS-1Ds Mark II and EOS 20D. Boththe blue/amber and the magenta/green biases can beset up to +/- 9 levels. The user can correct or changethe color temperature for the white balance modecurrently set. One can therefore obtain the same effectsusually provided by color temperature conversion filtersor color correction filters. Blue/amber andmagenta/green corrections can be set in combination.The setting screen is the same as the EOS 20D’s, butthe setting operation differs. The cross keys set thedesired white balance correction and the electronic dialsets the bracketing.In addition to the blue/amber bracketing offered in the EOS Digital Rebel camera, theEOS Digital Rebel XT camera also provides magenta/green bracketing. Either range, butnot both, may be set. When the shutter is released, three images are created, each witha different bias setting in a range of up to +/- 3 levels in 1-level increments. Whitebalance correction and auto exposure bracketing (AEB), can be set in combination withWB-BKT. When AEB and WB-BKT are combined, a total of 9 images will be saved to theCF card. WB-BKT does not work during RAW and RAW + JPEG shooting, since whitebalance settings can be adjusted during post-processing with the supplied software.Along with its new 8-megapixel sensor, one of the biggest differences between the EOSDigital Rebel XT camera and its predecessor, the EOS Digital Rebel camera, is its systemof controls and preferences. Of course, the camera can be operated in a fully automaticmode so that it can be use by inexperiencedphotographers. After brief experience with theexceptional quality of the images the XT cameraproduces, there is every expectation that the vastmajority of XT camera users will explore, andinevitably find indispensable, the many ways inwhich the camera can be made to do exactly whatthe user wishes. It is a delight to use such a tool.White fluorescent light Blackbodyradial locusTungstenlight bulbDaylight0.80.60.40.20 0.2 0.4 0.6 0.8CIE xy color graphB: BlueA: AmberG: GreenM: MagentaManual exposureShutter-priority AEAperture-priority AEProgram AEFull AutoPortraitLandscapeClose-up SportsNight portraitAuto Depth-of-Field AEFlash Off