...found the answer in Shutterbug myself (concerning ZX-L): "P-TTL Metering: When the flash unit is set to P-TTL mode, it fires a pre-flash burst before the actual exposure. In conjunction with the camera's multi-segment light sensor, the flash meter measures subject distance, brightness, and backlit condition. The resulting data is calculated for setting just the right flash output. P-TTL flash is available with any AF lens so you don't need to buy new lenses; however, it will operate only in Program modes and in Shutter Priority AE mode.
With typical subjects, indoors and out, I found that the ZX-L and this flash unit produced excellent results even in conventional TTL flash mode. The P-TTL technology should be more successful with subjects including an ultra-bright area: such as a bride in white among men dressed in black tuxes, or a bright reflection from a framed picture in the background." Jens Bladt mailto:[EMAIL PROTECTED] http://hjem.get2net.dk/bladt -----Oprindelig meddelelse----- Fra: Jens Bladt [mailto:[EMAIL PROTECTED] Sendt: 19. marts 2004 18:03 Til: [EMAIL PROTECTED] Emne: SV: New flash with P-TTL and wireless! ...can someone please expalain P-TTL to me? Thanks very much! all the best Jens Bladt mailto:[EMAIL PROTECTED] http://hjem.get2net.dk/bladt -----Oprindelig meddelelse----- Fra: Sylwester Pietrzyk [mailto:[EMAIL PROTECTED] Sendt: 16. marts 2004 20:56 Til: [EMAIL PROTECTED] Emne: New flash with P-TTL and wireless! At last - powerful flash with swivel head supporting P-TTL, HSS and wireless, but this time not from Pentax! http://www.sigma-photo.co.jp/english/news/ef500dg_sp_p.html -- Best Regards Sylwek
