Promaster 37mm Circular Polarizer - Digital HD canon070920launch Its optical design makes use

Its optical design makes use of a series of aspherical and low dispersion glass elements to suppress chromatic and spherical aberrations for notable sharpness and clarity

the Slide can be configured to work as a sling

Weight: 13 ounces

this design enables working in available light conditions and also affords greater control over depth of field

Promaster 37mm Circular Polarizer - Digital HD canon070920launch Its optical design makes useProMaster DIGITAL HD CIRCULAR POLARIZING FILTERS increase color saturation and reduce reflections. The neutral gray HD polarizing material guarantees excellent images while minimizing loss of light. Constructed with premium Schott optical glass these filters are designed to yield extreme image sharpness. They also feature a precision machined, super slim aluminum frame with anti reflective matte finish and knurled edges.