I was wondering what the benefits are using a cold light source over diffusion. I use Kodak Polymax Fine Art multigrade paper and T-Max 400. It seems like a lot of you use cold light, and I'm wondering if I'm missing out on something. I'm a ctually going to be shifting from condenser to diffusion in the near future, and I was looking forward to not having blocked highlights due to the Callier effe ct. And I believe diffusion creates more tones. I never really seem to have a pr oblem with dust. I'm curious what the "cold light" has to offer.