Flash with TTL vs. ADI????

If you are using digital sony lens (D Lens) then you should use ADI that works better :)
The environment light and distance reading works much better on ADI mode!

For the best indoor flash results i've always used bounce flash... where im not sure ADI really does anything.

For the best outdoor flash results I now use manual metering with fill flash.

Invest in a Gary Fong Lightsphere. That gives very good results for event type people shots outdoor or indoor.

The use of rear sync, smaller apertures and slightly longer shutter speeds can also be effective.

Basically, if you want the best flash results, i wouldnt worry to much about weather you get a (D) lens or a non D lens. Only the D flashes are digitally compatable though.

How about flash as fill in??

DPI might overexpose??? TTL might be preferred???

Please advise.

Thanks.

Martin

Again, how about fill in flash???

What is preferable??

Martin wrote: Again, how about fill in flash???

Martin,
Fill in Flash = forced flash. It will always fire if on regardless of ambient light. It is useful in daylight to fill in shadows, but will use ADI/TTL flash indoors and as mhohner pointed out the full answer can be found here: Minolta/Sony Flash Compendium

Edited by KonicaA3 - 08 May 2008 at 19:24

Martin wrote: Again my question - for fill flash should I use the TTL, or ADI setting?

If the flash is pointing straight ahead (as is typically the case with fill) then ADI is claimed to be more accurate; but I wouldn't count on it. Just try it both ways and see for yourself if there's a difference. And don't forget you'll have to adjust the flash exposure compensation setting to something appropriate. You don't want full exposure from the flash.

Martin, I sense some frustration    Unfortunately, there is no simple answer. I'm not that knowledgeable about flash, just don't use it that often, so when I do use it I want it as simple as possible. I usually use TTL, but that's because I've got a number of non-D lenses, and my flash usually isn't mounted on the camera's hot shoe. ADI measures the distance directly from the sensor plane to your subject; that's how it adjusts the intensity. This only works if your flash is on the hot shoe; if you're using bounce, the light travels farther, if you've got a ring flash on the front of a macro lens, it's a shorter distance; if you're in a studio, it could be anything. Take the time to read mhohner's link, especially the section on TTL and ADI. And practice some; my results are somewhat "variable" no mater what. This seems to be a common problem with all digital flash systems, BTW.