Catalyst

Ok.. sorry it took me long to answer.. been a busy day..

Often.. when you are shooting in low light digital cameras have a hard time focusing.. So try to find something of high contrast to focus on ( black next to white, bright colors next to dark colors) also.. just point the flash light at the person.. focus.. ( if you want switch to manual focus mode) and then with out moving the camera too much. turn off the flash light..

most studio lights have modeling lights to see where the light is going.. this is good enough for the human eye.. however this is not good enough for the digital camera... so a small mag light works great.. just point it at the models face, focus, then turn off the light, and shoot..