Simply using a blue filter to emphasize blue will result in the entire photo having a blue cast. Blue Hansa mainly makes blue more vivid and increases saturation. Blue Hansa Light has a weaker effect than Blue Hansa (Strong) so that it does not affect other colors, allowing you to enjoy natural images even when there are whitish subjects. /[77mm Blue Hansa Light]77mm Blue Hansa Light Simply using a blue filter to emphasize blue will result in the entire photo having a blue cast. Blue Hansa mainly makes blue more vivid and increases saturation. Blue Hansa Light has a weaker effect than Blue Hansa (Strong) so that it does not affect other colors, allowing you to enjoy natural images even when there are whitish subjects. □