On Dec 5, 2009, at 7:48 PM, Igor Roshchin wrote: > > Sat Dec 5 17:27:17 CST 2009 > AlunFoto wrote: > >> 2009/12/5 Igor Roshchin <str at komkon.org>: >>> I wonder if that's a feature of the P-TTL mode, and if so, - how to >>> deal with >>> that. It doesn't do a preflash, - so, I don't think it really works >>> as a P-TTL flash. >> >> If it doesn't preflash it's not in P-TTL mode. >> >> Are you using pre-A lenses on the camera? If so it reverts to old-style TTL. >> >> I just checked that. Picked up my 540 at the repair shop yesterday, it >> didn't get to Antarctica poor thing... >> >> Jostein > > Jostein, > > No, I've had this with 17-70 and 50-135. > Maybe TTL with 540 FGZ is worse than that with 500 FTZ? > > Igor
Actually, the P-TTL performance of the 540 FGZ is relatively good, at least for Pentax. I'm not very familiar with the 500 FTZ, but it's always been my impression that it was a TTL flash, not a P-TTL? If it was P-TTL capable, it would work with the newer cameras, and to the best of my knowledge it can only be used in manual or flashj/auto mode with the K10 and later cameras. But I could be wrong. If you're having problems with flash, experiment. With digital, that's fairly simple. And as I said, reflectors change the game plan a lot. If you use a spill type reflector in a room with a high ceiling, you're going to get minimal output. Today, I shot at the mall with its 200 ft. ceiling, so I used a softbox diffuser rather than a spill reflector or lumisphere. The right diffuser for the situation is critical. Paul > > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
