Reduces the amount of light entering the lens, thus decreasing camera shutter speed. Useful for situations where motion blur needs to be
created (rivers, waterfalls, moving people) or large apertures must be used with flash to avoid overexposure.
Note: Please verify your camera’s lens thread size before ordering. Your camera’s lens thread size will be marked somewhere on the lens barrel or printed underneath your lens cap.
This number is always preceded by a “ø” (diameter) symbol.