oh, i see your dilemma. what do you think about gel filtration? you can fit a filter in the knobs! thank god i am a photographer so here is my suggest for filters, oder a sample book of http://www.leefilters.com/LP.asp?PageID=53 i will be testing to get the knob anodized but i like the alu knob with the AnoFace too. by the way it is possilble to do red, green and blue anodizing too. hope i could have helped you.