obviousdude said:is high iso the norm for flash photog?
Just to add to Darkforce, the idea of using higher ISO is to capture more details in the background where the flash can't reach and not illuminate. If you use ISO 100 at the motor show, you may simply end up with the subject with a very dark background, which may not be flattening especially with asian's dark hair... But well, unless that's the effect you wanna achieve...