Colour Filter : Blue (Each)
$21.09
$33.53
Product Description Colour Filter Blue gel filter is part of a set of gel filters with transmissions peaking at the primary and secondary colour wavelengths. For use in colour absorption, reflection etc. with ray boxes and projectors. Active area 35 × 25mm. Gels mounted in standard glass projector slide mounts. A neutral density filter is available which reduces the intensity of light without affecting the colour profile of the light.
Optics & Waves