For travel, landscape, architectural, and other outdoor photographic applications, your most valuable imaging tool (after your camera and lens) is a Polarizing filter. But the benefits of Polarizing filters come at a cost, specifically, light loss. To soften the blow (and in many cases make the difference between a ‘keeper’ and an ‘almost-but-not-quite-a-keeper’ photo) we now stock Hoya HRT-series Circular Polarizing filters. These filters transmit about 25% more light compared to conventional Polarizing filters, which when shooting works out to about 1/3-stop more light.