Variable ND Filter Includes 2 variable ND filters: 2-5 stop VND and 6-9 stop VND.Easily rotate the filter to block out sunlight at different degrees.
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No calibration problems Each filter weighs only 0.11 oz / 3.2 g, so it will not affect the drones calibration or balance.
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Lightweight and secure The aluminum frame is tightly sealed and framed, so the filter in the kit is lightweight and durable.
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