User manual PENTAX AF540FGZ FLASH

[. . . ] AUTO ZOOM ELECTRONIC FLASH UNIT OPERATING MANUAL Please read this operating manual carefully first for proper use. Thank you for purchasing the PENTAX Auto-flash AF540FGZ. In addition to easy daylight sync photography with TTL auto, the AF540FGZ also allows wireless TTL auto (P-TTL auto) photography and high-speed sync. It is a clip-on type flash which enables accurate focus adjustments even in dark locations with built-in AF-assist spotbeam. PENTAX is a trademark of HOYA CORPORATION. FOR THE SAFE USE OF YOUR FLASH UNIT Although we have carefully designed this flash unit for safe operation, please be sure to follow precautions given on page 2. WARNING This symbol indicates that violating this item could cause serious personal injuries. CAUTION This symbol indicates that violating this item could cause minor or medium personal injuries, or material losses. is a symbol indicating items that are prohibited. [. . . ] (Refer to page 18. ) The flash mode on the camera must be set to (WIRELESS), otherwise the AF540FGZ will not discharge. By changing the camera's function settings, you can set the built-in flash unit so that it is not the main flash. Refer to the operating manual for the camera to find out how. For test flash, refer to page 58. 41 When Attaching the AF540FGZ to the Camera for Control Flash Main flash Control flash only: not used for main flash (Preparation of Flash Unit Attached to Camera) 1 Firstly, set the wireless mode and channel of the flash unit attached to the camera, and register them on the camera. Attach the AF540FGZ to the hot shoe of the camera after turning the camera off. Set the power switch of the flash unit to (WIRELESS). Press the wireless mode button (M/C/S) the number of times required to display CONTROL on the LCD panel. Slide down the setting switch to the (yellow dot) to display the channel on the LCD panel. Press the channel button (CH) and select a channel from 1CH to 4CH. Slide the setting switch back up to the (white dot). 42 When you turn the camera on and press the shutter release button halfway down, the channel of the flash unit is registered on the camera. (Preparation of Separated Flash Unit) Next, set the channel of the separated (wireless) flash unit to the same channel as the flash unit attached to the camera. Place the other AF540FGZ in the desired position. Set the power switch of the flash unit to (WIRELESS). Press the wireless mode button (M/C/S) the number of times required to display SLAVE on the LCD panel. Slide down the setting switch to the (yellow dot) to display the channel on the LCD panel. Press the channel button (CH) and select the same channel that the flash unit attached to the camera has been set to. Slide the setting switch back up to the (white dot). The two flash units must be set to the same channel, otherwise the separated flash unit will not discharge. 2 (Photographing) 3 Confirm that both flash units are fully charged, and take the photograph. A lamp on the wireless flash unit will blink. 43 When Using Both an AF540FGZ Attached to the Camera and a Separated Flash Unit as Main Flashes Use both flash units as main flashes (Preparation of Flash Unit Attached to Camera) 1 Firstly, set the wireless mode and channel of the flash unit attached to the camera, and register them on the camera. Attach the AF540FGZ to the hot shoe of the camera after turning the camera off. Set the power switch of the flash unit to (WIRELESS). Press the wireless mode button (M/C/S) the number of times required to display MASTER on the LCD panel. Slide down the setting switch to the (yellow dot) to display the channel on the LCD panel. Press the channel button (CH) and select a channel from 1CH to 4CH. 44 Slide the setting switch back up to the (white dot). When you turn the camera on and press the shutter release button halfway down, the channel of the flash unit is registered on the camera. (Preparation of Separated Flash Unit) Next, set the channel of the separated (wireless) flash unit to the same channel as the flash unit attached to the camera. [. . . ] This equipment generates, uses and can radiate frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does not cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: · Reorient or relocate the receiving antenna. · Increase the separation between the equipment and receiver. [. . . ]