Originally posted by rouds39 Gee, I am overwhelmed by all this response....
I have never used trailing curtain at all. I found out (it pays to read the manual BEFORE the job) about HSS to late. Experimenting with the p-TTL mode it sometimes yields good exposures sometime(mostly) lousy. Bounce was almost always way under exposed. So much for TTL.
Rudi
I'm no expert on using flash but i have learned a few things. Last week i used PTTL on my Metz 48 to photograph some kids for their parents in a local theatre event- yeah something over $200 when i bought it 2 years ago.
Reading the K20 manual, it seemed to indicated that to the authors, fill flash = HSS. And HSS is a part of pttl i believe. At least on the Metz flash, you have to cycle through the mode button which first gets one pttl and then pttl - HSS. I always thought you had to use an automated program mode to use PTTL, so I used TAV last Wednesday for the kids photos. It came out great in PTTL.
I didn't use a bounce flash because of the ceiling height and color (black). By the way, on my MEtz flash, it won't give a distance estimate for bounce flash because it can't calculate power needs accurately. So its not fair to blame pttl for underexposing a bounce flash. Increase the flash ev to its max and if that doesn't work, open up the aperture. For high ceilings, you may not be able to do it.
automated programs such as pttl, none of them, will work if you are trying to use them to adjust settings beyond their power level adjustment abilities, either too close or too far away.
I think with multiple flashes, manual is the way to go and sounds like you just discovered that. i use pttl for quick one flash jobs.