This Neutral Density Filter reduces brightness without affecting contrast or hue. The amount of light reaching the CCD drops to about one quarter (-2EV). Suited to prevent overexposure when the subject is extremely bright or when shooting at slow shutter speeds or large apertures.
Specifications:
Type Neutral Density
Size 55mm
Grade Diamond Stroke
Filter Factor Not Applicable
Multi-Coated Yes
MultiThreaded Yes
Effect Protects front element of lens and reduces brightness
Application ND4
Color Temperature Not Applicable
Construction Aluminum (black) and crystal grade glass