• * 【Variable ND Filter】K&F CONCEPT ND2-400 Filter reduce the light from 1 to 9 f-stops.
• * 【Material】Made by Completed Professional Optical Glasses, with double-side multilayer blue coating to help repel water.
• * 【Exposure Reduction】ND filters are good for rivers, waterfalls, and other bodies of water, especially under bright light. The longer exposure times allows for smoother water movements, shallower depth of field, and blurred motion.
• * 【Ultra-Slim】The filter frame is only 7.3mm, and super lightweight CNC ring used in construction prevents adverse effect
• * 【Compatibility Note】This ND filter suits all 67mm lenses. Check your camera's lens thread size (usually beside a "ø" diameter symbol) before ordering. A 72mm lens cap is also required for this 67mm variable ND filter.

Features:

• Reduces the amount of light reaching the lens without affecting the color.
• The K&F ND Filter Multi Resistance Coating (MRC) helps repel water, dust & grease, while also preventing ghosting.
• Applies slow shutter speed under strong sunlight exposure.
• Glass mounted with high-pressure press technology.
• Made of import AGC optical glass by K&F Concept technology.
• Wider outer optic to help reduce vignetting at wide angles.
• Extinction paint Seiko manufacturing, to achieve the testing sights on the military standard.