The AF500FTZ was released in 1992. Pentax updated the flash protocol to P-TTL in 2001 to bring Pentax flashes into modern day with wireless flash, high speed sync, etc...
The difference between the Sigma flashes, and the Pentax AF500FTZ is that when you bought it, the unit was already 7 years old. Sigmas flashes are fairly current, and are "supposed" to work with P-TTL. Your FTZ was never intended to work with P-TTL. It acts as it was intended. P-TTL was already the standard in new Pentax bodies (MZ-S & MZ-6) in 2001, 2 years prior to the *ist D, which *also* supports TTL. As do the *ist DS and *ist DS2. I think that 14 years (1992 to 2006) of use of a top of the line flash on modern bodies is reasonable. There was even 5 years of overlap where your TTL flash was still supported in new camera bodies. And nothing stops you from using that flash on a *ist D/DS/DS2 body now! Enjoy your equipment as it was intended. Mike On 12/13/06, Tom C <[EMAIL PROTECTED]> wrote: > Of course Pentax brought out it's top of the line AF500 FTZ flash which I > purchased in '99... which is now rather useless on it's DSLR's. > > At least Sigma updates their flash. With Pentax you need a whole new unit. > > > Tom C. > > > >From: Joseph Tainter <[EMAIL PROTECTED]> > >Reply-To: Pentax-Discuss Mail List <[email protected]> > >To: [email protected] > >Subject: K10D and Ring flash > >Date: Mon, 11 Dec 2006 10:15:27 -0700 > > > >Sigma's ringflash is supposed to be forthcoming in P-TTL form. Now that > >Sigma has a copy of the K10D, it may appear soon. > > > >I hesitate to buy one, though. Every time you buy a new body, you have > >to send the flash back to Sigma for a new chip. > > > >I, too, wish Pentax would bring one out. After all, the macros were two > >of Pentax's first digital lenses. > > > >Joe > > > >-- > >PDML Pentax-Discuss Mail List > >[email protected] > >http://pdml.net/mailman/listinfo/pdml_pdml.net > > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > -- -- Remember to Breathe -- MichaelHamilton.ca -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
