The Hitech 6 x 6" Cool Blue #3 Filter is a solid, cool blue-colored filter giving you subtle, overall coolness to your images. This steely blue hue provides a more vibrancy to your skies and helps to subdue overly yellowish casts to other regions of your image. The #3 density provides a noticeable amount of cool blue coloration to your image. The filter measures 6 x 6" / 152.4 x 152.4mm and is constructed out of CR-39 dyed resin.
Cool blue-colored filter provides subtle, additional coolness to your images and reduces yellowish casts.
#3 density provides a noticeable amount of cool blue coloration.