marshall rose

anyone else got an answer?

Im lighting tabletop with various jokers and litepanels. For some shots I need to shoot with my shutter at a 250th of a second or a 500th. When I use the lightpanels i don't get a strobbing effect (or at least a rolling bars effect) when shooting with narrow shutter. When I use the jokers I do. Sometimes I need to use the jokers depending on the situation. So anyway, whats the solution here? I've put the shutter in "angle" mode but i still can't find the exact right shutter speed to avoid the rolling bars effect. I know jokers need to be shot with shutters that are divisible by 3 or 4 cause the voltage frequency is 120, right? Anyone know a shutter angle i can use that gives me an exposure of about 250th and also one near a 500th that won't give me rolling bars when using HMIs? thanks

thats great advice justin - thanks so much! I'm going to bang a par onto the shiny side of a piece of b board to get the glow on the bottle from the back, and then fill it in with a sidy frontal soft source (prolly divas through 250). anyone know of a tabeltop lighting resource? like, just a basic how to guide? website or book? Just trying to fill in some basics I missed out on. thanks again! marshalll

I need to shoot a tabletop shot of a Heineken bottle and then of a pint glass being filled with guinness. Unfortunately they need to key in a background, so we will be using a greenscreen as well. I'm shooting on Red w/nikon glass, at 2k, 120fps, redcode 28. I'm fine w/getting an even light across the green screen and avoiding any green bounce onto the subject. Does anyone know of a resource (website or previous discussion here) on tabletop lighting? Mostly I'm concerned w/reflections on the glass. Do I use side light refletion to my advantage (like bouncing a blond onto a 4x8 B board) and use the white reflection to give the bottle a white edge? Or do I avoid that all together and just backlight the bottle (dual 3/4 rear keys) and fill in the front with a low soft source and avoid getting reflection. I know there are a lot ways to do this but if someone knows of a resource or has some advice - that would be extremely appreciated. im also concerned w/seeing chroma green through the glass and having the graphics guy struggle to key it...but that's another discussion i guess. Thanks! marshall