Guide number (148ft/ISO 100) in manual mode, seven-step adjustment from 1/1 to 1/64, approx. 2.6 - 26.3 ft. effective flash range, bounce head. *High Guide number for increased range and versatile flash performance *P-TTL mode with preflash allows for more accurate strobe photography *Wireless P-TTL flash is available when used with the MZ-S, ZX-L, *ist D *High speed on camera and high speed wireless flash is available in P-TTL modes *Flash exposure compensation through a simple control dial *Standard TTL flash is available when used with Pentax TTL flash enabled camera bodies *Modeling light feature strobes the flash for one second so the photographer can check for unwanted shadows or highlights *Includes an autofocus assist beam for focusing in low light or low contrast situations .

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