Filter ND4 52mm

With the 52mm ND4 Lens Filter, you can control the amount of light entering the lens and thereby also change the color and tones of your images. This is useful when shooting on larger apertures with the Neptune Convertible and Petzval such as f/2.2 and f/2.8, especially in sunny conditions—using the ND filter, you can reduce the amount of light coming into the lens, whilst still keeping the swirly bokeh effect.

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