I own several 650w, 1kw, 2kw Arri Studio fresnels and 150W Dedos. Only the Dedo can give sharpest shadow at full flood but it is not powerful enough. My bigger fresnels are too soft for such application at full flood and there is no enough room to move it far back to give sharpest shadow. I have tried the trick of light the subject with the edge of a fresnel beam to give better shadow definition but it is much dimmer.
I have no experience with par or open face, so I don't know if they can create sharper shadows than focusing spots. Any suggestion of tungsten lights would be appreciated (small HMI fresnel can give very sharp shadow but it is out of my budget). thanks
Edited by Sing Lo, 17 February 2008 - 07:43 PM.