User manual PENTAX AF-540FGZ

[. . . ] 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 emphasizing a warning. 1 WARNING The flash contains electronic circuits that operate at high voltages. [. . . ] Press the channel button (CH) and select the same channel that the flash unit attached to the camera has been set to. 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. 45 Wireless High-Speed Sync Photography (Using the AF540FGZ in Combination with a Built-in Flash Unit) 1 Firstly, set the wireless mode and channel of the AF540FGZ, and register them on the camera. Turn the camera off and then attach the AF540FGZ to the hot shoe of the camera. Press the wireless mode button (M/C/S) the number of times required to display SLAVE on the LCD panel. You cannot set the flash unit to SLAVE while the exposure metering timer is on (while information relating to aperture etc. Slide down the setting switch to the (yellow dot) to display the channel on the LCD panel. Slide the setting switch back up to the (white dot). 46 Next, remove the flash unit from the camera and place it in the desired position. Press the flash mode button (MODE) to display (P-TTL) if the flash mode was set to the modes other than P-TTL. 2 3 4 5 6 When you turn the camera on and press the shutter release button halfway down, the channel is registered on the camera. If the shutter speed is the same or slower than the X-sync speed of the camera, the flash will be set to P-TTL mode, and when it is faster than Xsync speed, the flash will be set to high-speed sync mode. Confirm that the AF540FGZ and built-in flash unit are fully charged, and take the photograph. Refer to camera's operating manual for the operation of the camera. 7 Set the zoom position. (Refer to page 21) Set the zoom position with (M. Zoom) regardless of the lens you use. Enable the built-in flash unit of the camera and display ( ) on the LCD panel. Set the sync mode switch of the wireless flash unit to leading curtain sync ( ). Set the exposure mode of the camera to manual exposure and the shutter speed faster than Xsync speed. 47 (Using the AF540FGZ in Combination with another AF540FGZ) 1 Firstly, set the wireless mode and channel of the AF540FGZ attached to the camera, and register the channel on the camera. Turn the camera off and then attach the AF540FGZ to the hot shoe of the camera. Set the power switch of the flash unit to (WIRELESS). Press the wireless mode button (M/C/S) the number of times required to select CONTROL or MASTER. CONTROL: For using the flash unit attached to the camera as the control flash. 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. 48 Next, set the channel of the separated (wireless) flash unit to the same channel as the flash unit attached to the camera. 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. [. . . ] This equipment has been tested and found comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio 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. [. . . ]