Newbie to DSLR - flash question

[Chiacj]

Hi,

When do I use TTL /ADI for flash ?
And for portrait taking with subject about 2-3m, which mode should I use?

Hope someone could help. =)

 

[Rashkae]

You should use the one that works best. Also, you should try to learn what each means, how it works and then you'll understand more

 

[ziploc]

http://www.clubsnap.com/forums/showthread.php?t=153344