Canon Eos Rebel T4i 650d Instruction Manual
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221 3 Appending Dust Delete Data N 3Photograph a solid-white object. At a distance of 20 cm - 30 cm (0.7 ft. - 1.0 ft.), fill the viewfinder with a patternless, solid-white object and take a picture. X The picture will be taken in aperture- priority AE mode at an aperture of f/22. Since the image will not be saved, the data can still be obtained even if there is no card in the camera. X When the picture is taken, the camera will start collecting the Dust Delete Data. When the Dust Delete Data is obtained, a message will appear. Select [ OK], and the menu will reappear. If the data was not obtained successfully, a message to that effect will appear. Follow the “Preparation” procedure on the pr eceding page, then select [ OK]. Take the picture again. After the Dust Delete Data is obt ained, it is appended to all the JPEG and RAW images captured thereafter. Before an important shoot, it is recommended to update the Dust Dele te Data by obtaining it again. For details about using Digital Phot o Professional (provided software, p.350) to erase dust spots, refer to the Software Instruction Manual (p.352) on the Software Instruction Manual CD-ROM. The Dust Delete Data appended to the image is so small that it hardly affects the image file size. About the Dust Delete Data Be sure to use a solid-white object such as a new sheet of white paper. If the paper has any pattern or design, it ma y be recognized as dust data and affect the accuracy of the du st deletion with the software. COPY
222 Dust that could not be removed by the automatic sensor cleaning can be removed manually with a blower, etc. Before cleaning the sensor, detach the lens from the camera. The surface of the image sensor is extremely delicate. If the sensor needs to be cleaned directly, having it done by a Canon Service Center is recommended. 1Select [Sensor cleaning]. Under the [ 53] tab, select [Sensor cleaning], then press < 0>. 2Select [Clean manually]. Select [Clean manually], then press . 3Select [OK]. Select [OK ], then press < 0>. X In a moment, the reflex mirror will lockup and the shutter will open. 4Clean the sensor. 5End the cleaning. Set the power switch to . 3 Manual Sensor Cleaning N If you use a battery, make sure it is fully charged. If the battery grip with size- AA/LR6 batteries is attached, manual sensor cleaning will not be possible. For the power source, using AC Adapter Kit ACK-E8 (sold separately) is recommended. COPY
223 3 Manual Sensor Cleaning N While cleaning the sensor, never do any of the following. If the power is cut off, the shutter will close and the shutter curtains and image sensor may get damaged. • Setting the power switch to < 2>. • Opening the battery compartment cover. • Opening the card slot cover. The surface of the image sensor is extremely delicate. Clean the sensor with care. Use a plain blower without any brus h attached. A brush can scratch the sensor. Do not insert the blower tip inside th e camera beyond the lens mount. If the power is turned off, the shutter will close and the shutter curtains or reflex mirror may get damaged. Never use canned air or gas to clea n the sensor. The blowing force can damage the sensor or the spray gas can freeze on the sensor. If the battery level becomes low whil e you clean the sensor, the beeper will sound as a warning. Stop cleaning the sensor. If a smudge that cannot be removed with a blower remains, having the sensor cleaned by a Canon Se rvice Center is recommended. COPY
225 Wireless FlashPhotography You can use the built-in flash for wireless flash shooting. The camera’s built-in flash can work as a master unit with Canon Speedlites with a wireless slave feature and wirelessly trigger the Sp eedlite(s) to fire. Canceling the slave unit’s auto power off To cancel the slave unit’s auto power off, press the camera’s < A> button. If you are using manual flash firing, press the slave unit’s te st firing (PILOT) button to cancel the auto power off. Be sure to also read the in formation about wireless flash photography in th e Speedlite’s instruction manual. COPY
226 Regarding your Speedlite (slave unit), refer to its instruction manual and set it as follows. The settings othe r than the ones below for the slave unit’s control are all set with the camera. Different types of Canon Speedlite slave units can be used and controlled together. (1) Set the Speedlite as a slave unit. (2) Set the Speedlite’s transmission channel to the same channel as set on the camera. * 1 (3) If you want to set the flash ratio (p.232), set the slave unit ID. (4)Position the camera an d slave unit(s) within the range shown below. (5) Face the slave unit’s wirel ess sensor toward the camera. *2 *1: If the Speedlite does not have a transmissi on channel setting function, the camera can work with any channel. *2: In small rooms, the slave unit may work even if its wireless sensor does not face the camera. The camera’s wireless signals can bounce off the walls and be received by the slave unit. When using an EX-series Speedlite with fixed flash head and wireless sensor, take pictures to make sure it can fire. Using Wireless FlashN Slave Unit Settings and Position Approx.10 m (32.8 ft.) Approx. 7 m (23.0 ft.) Approx. 5 m(16.4 ft.) Approx. 7 m (23.0 ft.) Approx. 80° Example of Wireless Flash Set-up Indoors Outdoors The camera’s master unit function cannot be used for wireless flash shooting with radio transmission. COPY
227 The basics of easy, fully automatic wireless flash shooting are explained below. Steps 1 to 4 and 6 apply to all wireless flash shooting. Therefore, these steps are omitted in the other wireless flash setups explained on the pages hereafter. 1Press the button to raise the built-in flash. For wireless flash shooting, be sure to raise the built-in flash. 2Select [Flash control]. Under the [ z1] tab, select [Flash control ], then press < 0>. 3Select [Evaluative]. For [ E-TTL II meter. ], select [Evaluative ], then press < 0>. Easy Wireless Flash Shooting Fully Automatic Shooting with One External Speedlite COPY
228 Easy Wireless Flash Shooting 4Select [Built-in flash settings]. Select [Built-in flash settings ], then press < 0>. 5Select [EasyWireless]. Under [Built-in flash ], select [EasyWireless ], then press . 6Set [Channel]. Set the transmission channel (1-4) to the same one as the slave unit. 7Take the picture. Set the camera and take picture in the same way as with normal shooting. 8Exit the wireless flash shooting. For [ Built-in flash ], select [NormalFiring ]. Setting [ E-TTL II meter. ] to [Evaluative ] is recommended. Even though the firing of the built-in flash is disabled when [ EasyWireless ] is set, it will still fire a smal l flash to control the slave unit. Depending on shooting conditions, the flash fired to control the slave unit may appear in the picture. Firing a test flash is not po ssible with the slave unit. COPY
229 Easy Wireless Flash Shooting You can have multiple slave units fire as if they were a single Speedlite. This is convenient when you need a large flash output. Basic settings: Flash mode : E-TTL II E-TTL II meter. : Evaluative Built-in flash : EasyWireless Channel : (Same as slave units) All the slave units will fire at the same output and be controlled to obtain a standard exposure. No matter what the slave ID is (A, B, or C), all the slave units will fire as one group. If the flash exposure looks too dark or too bright, you can set flash exposure compensation to adjus t the slave units’ flash output. Select [Flash exposure compensation], then press < 0>. If the flash exposure is too dark, press the key to increase the flash exposure and make it brighter. If the flash exposure is too bright, press the < Y> key to decrease the flash exposure and make it darker. Fully Automatic Shooting with Multiple External Speedlites Flash Exposure Compensation COPY
230 This section describes fully automatic wireless flash shooting with one external Speedlite and the built-in flash. You can change the flash ratio between the external Speedlite and built-in flash to adjust how the shadows look on the subject. On the menu screens, the and < 1 > icons refer to the external Speedlite, and the < 3> and < 2> icons refer to the built-in flash. 1Select [CustWireless]. Follow step 5 on page 228 to select [CustWireless ], then press . 2Select [Wireless func.]. Under [Wireless func.], select [0 :3], then press < 0>. 3Set the desired flash ratio and take the picture. Select [ 0:3 ] and set the flash ratio within 8:1 to 1:1. Setting a flash ratio to the right of 1:1 is not possible. If the built-in flash output is not enough, set a higher ISO speed (p.90). Custom Wireless Flash Shooting Fully Automatic Shooting with One External Speedlite and Built-in Flash The 8:1 to 1:1 flash ratio is equivalent to 3:1 to 1:1 stops (1/2-stop increments). COPY