Quote Originally Posted by neuroanatomist
Personally, it's not enough of an effect for me to eschew the easier cleaning, weather-sealing, and protection that a high-quality filter provides.

John


Good comparison


I wonder what other factors such as sharpness, color etc... that you loose using the filter.


I have always known there is some loss when you add the filter, and thats why we pay top dollar for the best filters we can find to protect our lenses.