Originally posted by v3t0 Hi,
I saw some flash can be use to light up/torch the object..is AF360/AF540 can do that as well? How about 3rd party like sigma 500 DG Super?
Many flashes have a mode where they can strobe really quickly in order to give you a sense of where the light will hit and where shadows will fall.
I have a page on this at
Modeling Light Option - Pentax P-TTL Flash Comparison
but unfortunately I haven't gotten to update it yet for the new Metz and Sigma flashes. (Maybe I'll get a chance today.)
In short, though, the Pentax AF360FGZ and AF540FGZ can do this, as can the Promaster 7500EDF, and the Super models from Sigma (but not the ST models). The higher-end Metz flashes do, but I'm not exactly sure where the line is drawn on that in the new lineup. (I'll update this after I look.)
Note that this is much more useful with film cameras. With digital, you can just take a test exposure and see how it looks on the camera's LCD. Still, it's sometimes handy for light placement.