I've been having difficulty balancing the light when shooting a lit up sign. Either LED, halogen back lit or Neon.
My method is on a tripod tonight was with a 70-200L f/4 and 17-40L, using aperture from 4 to 16 (trying to find the best). I varied the shutter speed from 1/8 up to 2.5" in order to balance the light around it and not wash it out.
Any tips or tricks for this?