..Press the button to select . ..Press the button to select . • will be displayed. ..Press the button to select a channel 1 to 4. 2 Set the slave unit. ..Set the same channel as with the master unit. ..Set the ID to . ..As for the setting procedure, refer to the slave Speedlite’s instruction manual. 3 Position the slave unit(s). ..Face the slave unit C’s sensor toward the master unit. ..Do not put any obstructions between the master unit and slave unit(s) C. 4 Check that the flash is ready. ..When the slave unit(s) C is ready to fire, the AF-assist beam will blink for 1 sec. 5 Check that the wireless flash system works. ..Press the master unit’s test firing button. • The master unit and slave unit(s) C will fire. ..If the slave unit(s) does not fire, adjust the position, angle, and distance from the master unit. ..The wireless multiple flash system requires both flash tubes/heads A and B to fire. It will not work if only A or B is fired. ..If is set with the following cameras, wireless multiple flash with slave C will not be possible. EOS ELAN ll/ELAN ll E/50/50E, EOS REBEL G/500N, EOS IX, EOS IX Lite/IX7, EOS 3000/88, EOS REBEL 2000/300, EOS REBEL XS N/ REBEL G II/3000N/66 ..The flash ratio for flash tubes/heads A and B can be set as with normal flash photography. See “Setting the Flash Ratio” (p.21). ..If the slave unit’s auto power off takes effect, press the master unit’s test firing button to turn on the slave unit. ..For shooting, will also be set automatically for the slave unit(s). ..Features Compatible with Wireless Flash The following features can be used as with normal flash photography without touching the slave unit(s). FE lock, flash exposure compensation, FEB, high-speed sync (FP flash) ..Wireless Multiple Flash Photography possible with C.Fn-5-1 • Autoflash with slave unit(s) whose ID has been set to A or B. • Wireless multiple manual flash with flash tubes/heads A and B and slave unit(s) C firing at a different flash output. For details, refer to the instruction manual for the Speedlite equipped with a slave function. Reference MR-14EX and MT-24EX System.......................... 36 Troubleshooting Guide ......................................... 37 Specifications ....................................................... 38 Using a Type-B Camera ....................................... 41 MR-14EX and MT-24EX System 1243 • Macro Ring Lite MR-14EX • Macro Twin Lite MT-24EX • Compact Battery Pack CP-E4 Compact, lightweight, and portable external power pack. It uses eight size-AA alkaline (LR6) or Ni-MH (HR6) batteries. It can also use size-AA lithium (FR6) batteries. • EX-series Speedlite with slave function For the external power pack, be sure to use 3 above. If a non-Canon, external power pack is used, it may cause malfunction. Troubleshooting Guide ..The flash does not fire. • The control unit is not securely attached to the camera. • Attach the control unit’s mounting foot securely to the camera. (p.11) • The control unit’s contacts or the camera’s hot shoe contacts are dirty. • Clean the contacts. (p.11) • The control unit does not have batteries. • Install the batteries in the control unit. (p.10) • The control unit’s batteries are exhausted. • Install a new set of batteries into the control unit. (p.10) ..The flash exposure becomes underexposed or overexposed. • Flash exposure compensation has been set. • Cancel the flash exposure compensation. (p.24) ..Single flash tube/head firing cannot be done. • Custom Function C.Fn-5-1 has been set. • Set it to C.Fn-5-0. (p.29) • (RATIO_A:B:C) has been set. • Set it to . (p.21, 27) ..The power turns off by itself. • The power switch is set to the SE position. • Set the power switch to or press the test firing button. (p.18) ..Wireless multiple flash does not work. • Custom Function C.Fn-3-1 has been set. • Set it to C.Fn-3-0. (p.29) ..The slave unit(s) does not fire. • The slave unit(s)’s wireless selector is not set to . • Set it as the slave unit. (p.33) • The slave unit(s) is not positioned properly. • Position the slave unit(s) within the master unit’s wireless transmission range. (p.32) • Point the slave unit(s)’s sensor toward the master unit. (p.33) Specifications Macro Ring Lite MR-14EX •Type Type: On-camera, E-TTL II/E-TTL/TTL autoflash ring flash for closeup photography Compatible cameras: Type-A EOS cameras (E-TTL II/E-TTL autoflash) Type-B EOS cameras (TTL autoflash) Guide No.: 14/46 (ISO 100, in meters/feet) Flash coverage: Approx. 80° top and bottom and 80° left and right Flash duration: 1.4 ms or shorter • Exposure Control Exposure Control Type: E-TTL II/E-TTL/TTL autoflash, manual flash Flash range: Normal flash: Approx. 20 mm - 5 m / 0.8 in. - 16.4 ft. (At ISO 100, with f/2.8 lens) High-speed sync: Approx. 20 mm - 2.2 m / 0.8 in. - 7.2 ft. Firing configuration: Two flash tubes can be fired together or singly Flash ratio control: 1:8 - 1:1 - 8:1 in 1/2-stop increments Flash exposure comp...