About AF-Assist Beam | Canon Canon Speedlite 600EX RT manual

Using E-TTL II and E-TTL Autoflash in the Shooting Modes

About Auto Zoom Adjustment to Image Sensor Size

EOS digital cameras have three sizes of image sensors, and the effective focal length of the mounted lens varies depending on the model. This flash automatically recognizes the image sensor size of each EOS digital camera, and automatically adjusts the optimum flash coverage for the effective focal length of the lens in a range of 20 to 200 mm.

When mounted on a supported camera, <S> is displayed on the LCD panel.

Auto zoom adjustment for image sensor size can be disabled (C.Fn-09/p 98).

About Color Temperature Information Transmission

This function optimizes the white balance during flash shooting by transmitting the color temperature information to the EOS digital camera when the flash fires. When you set the camera’s white balance to <A> or <Q>, the function is enabled automatically.

See the Specifications in your camera’s instruction manual to find out if it is compatible with this function.

About AF-Assist Beam

When autofocus cannot achieve focus on the subject in low-light or when contrast is low, the built-in AF-assist beam activates automatically to help autofocus.The AF-assist beam in 600EX-RT/600EX is compatible with all EOS cameras’ AF points. The AF-assist beam is compatible with 28mm and longer focal lengths and its effective range is shown in the table below.

Position	Effective Range (Approx. m/ft.)
Center	0.6 / 2.0 to 10 / 32.8

Periphery	0.6 / 2.0 to 5 / 16.4

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Canon Canon Speedlite 600EX RT instruction manual About Auto Zoom Adjustment to Image Sensor Size, About AF-Assist Beam

Contents

600EX-RT Using the Speedlite with a Camera Using with an EOS digital camera Type-A cameraUsing with an EOS film camera Introduction Chapters Contents Reference 103 Wireless Flash Shooting Optical TransmissionCustomizing the Speedlite Nomenclature Nomenclature LCD panel TTL II/E-TTL/TTL autoflash p.19 Manual flash p.31 Slave unit Accessories provided Basic Assumptions Conventions Used in this ManualIcons in this Manual Getting Started and Basic Operations Installing the Batteries Install the batteriesOpen the cover Close the cover Attaching and Detaching the Flash Attach the SpeedliteSecure the Speedlite Detach the Speedlite Turning on the Power About Auto Power OffCheck that the flash is ready About Quick Flash About the Lock Function About the LCD Panel Illumination Set the flash mode to a Fully Automatic Flash ShootingFocus the subject Take the picture Using E-TTL II and E-TTL Autoflash in the Shooting Modes Flash Sync Speeds and Apertures Used About AF-Assist Beam About Auto Zoom Adjustment to Image Sensor SizeAbout Color Temperature Information Transmission Advanced Flash Shooting FFlash Exposure Compensation Set the flash exposure compensation amount GFEB Set the FEB level FE Lock CHigh-speed Sync Display c RSecond-curtain Sync Display r Bounce Set the Bounce Direction Catchlight Panel Turn the flash head 90 up Pull out the wide panel Flash Coverage Setting Short Distance Flash ShootingPress the button Set the flash coverage Wide Panel Push back the catchlight panel Set the flash output Set the flash mode to qManual Flash Set up an 18% gray card Metered Manual Flash Exposures Set the flash mode to ? ? Stroboscopic FlashSelect an item Set the value Calculating the Shutter Speed Maximum Number of Continuous Flashes Flash 250 Output 128 Auto External Flash Metering Set the flash mode toFlash External Metering Set the same aperture as on the camera Manual External Flash MeteringSet the same ISO speed as on the camera Press the depth-of-field preview button on the camera Clearing Speedlite SettingsModeling Flash Color Filter Supplied Color Filters Commercially-available Color Filters Setting Flash Functions with Camera Operations Set the function Flash Function Setting Select External Speedlite controlFlash Control from Camera’s Menu Screen EOS digital cameras released from 2007 to Settings Available in Flash function settingsEOS digital cameras released since Flash synchronization speed in Av mode Flash modeFlash firing TTL II flash metering Zoom flash coverage Wireless flash functions settingClear Speedlite function settings Set the Custom Function Flash Custom Function SettingsExternal flash C.Fn setting Wireless Flash Shooting Radio Transmission Radio Transmission Wireless Flash Shooting Autoflash Shooting Using One Slave Unit p.57 Wireless Multiple Flash Shooting Shooting with a Different Flash Mode set for Each Group p.65 Transmission wireless shooting using E-TTL autoflash is not EOS cameras compatible with E-TTL and released up toFlash sync speed is 1 increment slower Group flash is not possible p.65 Wireless Settings Master Unit Setting Display and MSlave Unit Setting Display Transmission Channel/Wireless Radio ID Settings Set a wireless radio ID Set a channel Scanning the Master Unit Transmission Channels to Set Run the scanScanning while Auto is set Scanning while Ch to 15 is set About the D Lamp Master Flash Firing ON/OFFSet the N display Set the master flash firing About the Memory Function Press function buttonSave Load Fully Automatic Wireless Flash Shooting Autoflash Shooting Using One Slave Unit Set the master unitSet the slave unit Check the channel and ID Check the transmission status and that the flash is ready Check the operation Autoflash Shooting Using Multiple Slave Units Using Fully Automatic Wireless Flash About Master Units Autoflash Shooting with Two Slave Groups Set the firing group of the slave unitsDisplay N Set to % Set firing group C Set the flash ratioAutoflash Shooting with Three Slave Groups Set flash exposure compensation as required Set the flash mode to q Set the number of firing groups Select a firing group Shooting with a Different Flash Mode for Each Group Set the flash mode Set the flash output or flash exposure compensation amount Each slave unit fires in the respective flash modes set Modeling flash p.38 Cameras Not Compatible with Slave Unit Remote Release Remote Release from a Slave UnitCameras Compatible with Slave Unit Remote Release Remote Release from a Slave Unit Linked Shooting with Radio Transmission Set the camera’s shooting functions Set the flash or transmitter to normal shootingSet the channel and ID Set all the Speedlites Linked Shooting with Radio Transmission Page Wireless Flash Shooting Optical Transmission Optical Transmission Wireless Flash Shooting Autoflash Shooting Using One Slave Unit p.81 Optical Transmission Wireless Flash Shooting Transmission Channel Setting Same channel for both the master unit and slave unit Set a channel About the Memory Function Fully Automatic Wireless Flash Shooting Position the camera and the flash Autoflash Shooting Using Multiple Slave Units Using Fully Automatic Wireless Flash Wireless Multiple Flash Shooting with Flash Ratio Set slave C Set flash exposure compensation as required Wireless Multiple Flash Shooting with Manual Flash Output Stroboscopic Flash Set the slave unit p.78 Set the individual slaveManual Flash Page Customizing Speedlite Setting Custom and Personal Functions Custom Functions Display the Custom Functions screenSelect an item to set Personal Functions Display the Personal Functions screen Custom Function List Number Function Personal Function List Clearing All the Custom/Personal Functions Setting Custom Functions Fn-00 Distance indicator display Fn-03 FEB auto cancel Fn-06 +Quickflash with continuous shot Fn-09 .Auto zoom for sensor size Fn-12 3Flash recycle with external power 100 Setting Personal Functions Fn-02 Alcd panel illumination color Normal shooting 102 Reference 600EX-RT/600EX System Speedlite 600EX-RT 105 Temperature Increase Warning Number of Continuous Flashes and Rest Time Troubleshooting Guide Power does not turn on or the flash does not firePower turns off by itself Normal Shooting Bottom of the picture looks dark Picture periphery looks darkPicture is very blurred Flash coverage is not set automatically Radio Transmission Wireless Shooting Wireless shooting does not workSlave unit does not fire Pictures are overexposed Cannot release from a slave unit Linked ShootingIs displayed Optical Transmission Wireless Shooting Master unit’s flash fires Specifications Type 113 114 Manual Flash Guide Number ISO 100 in meters/feetNormal Flash Full Output/Quick Flash Functions not available with Type-B cameras Using with a Type-B CameraFunctions available with Type-B cameras 117 Memo 119 Index Individual Slave 121 Canon CPA-L004-003 Canon INC Canon QJ Nederlands Canon QJ Nederlands Canon 24mm English Canon Remarks