Okay, I must admit that I have no definitive way to handle it. Light from sodium is not daylight balance. It swings from yellow to orange. The problem got worsen by different light manufacturer has its own frequency swing. 1) The easiest way is shoot Black & White. 2) if the light source is sodium only, try 82A filter. 3) Try balance the light with Tungsten light from the opposite side. 4) Try blue Tungsten filter 80B and a longer exposure. The long exposure is to capture all frequencies of the light. 5) flash with yellow/orange gel and correct with deep blue. May need the lab correct some or scan it and use photo shop. :) 6) Overpower the light of the whole place with multiple strobes, (Is there white ceiling to bounce?) 6) knock on NASA's observatory tower and beg for an Astronomical filter made for sodium light filter. Err... I have never use one. Happy shooting. _______________________________________________________ Are you a Techie? Get Your Free Tech Email Address Now! Many to choose from! Visit http://www.TechEmail.com * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
