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The low profile 55mm ND8/Circular Polarizer Combo Filter from SNAKE RIVER PROTOTYPING was designed with aerial and motor sports applications in mind, but can be used anywhere light reduction and polarization in a single, slim filter is required. Together, the filters reduce the light levels by approximately three stops and help to cut glare and reflections from glossy surfaces. In addition to cameras with 55mm filter threading, this filter can be used with the BlurFix3 and BlurFix3+ adapters for the GoPro HERO3 and HERO3+ cameras respectively.
Light Reducing ND8
The ND aspect of the filter cuts light by approximately 3 stops. This helps prevent over exposure on bright days, and allows the camera to retain a lower shutter speed for more natural motion blur. The filter may also reduce the appearance of rolling shutter artifact, a "motion skewing" or "wobbly" effect present on many CMOS-based cameras
The circular polarizer helps cut glare and reflections in water, snow, glass, and other glossy surfaces - this effect is intensified or reduced by rotating the filter. It also increases sky contrast, and can help make outdoor scenes appear more vibrant. Because polarization depends on the angle from which light strikes the glass, the effect may change if the camera is moving
Low Profile Form Factor
Helps ensure the filter won't vignette on cameras like the GoPro that have extremely wide angle lenses
In the Box
Snake River Prototyping 55mm ND8/Circular Polarizer Combo Filter