52mm Moose Warming Circular Polariser
Developed by reknown wildlife photographer Moose Peterson and Hoya, the Moose filter overcomes the problem of vignetting when a 81A filter is stacked witha Polariser - particularly when used on wide angle lenses. An 81A filter is often used in conjunction with a Circular Polariser to counteract the cooling effect of the polariser and to bring the colour temperature closer to the film and digital requirements. The glass component of the Moose is made from 81A glass, thereby building in the warming effect without the disadvantage of the extra thickness of a separate filter
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