K&F CONCEPT 77mm Variable ND Filter ND2-400 1-9 Stops HD Optical Glass

1-9 F-stops: Nano-X Variable ND2-400 filter is intended for long exposure and motion blur techniques in changing light. Reduces light intake from 1 to 9 stops without affecting color balance. Great for landscape photos and video recording. HD Optical Glass: This ND filter is made by HD AGC optical glass, a total of 28 multi-layer coatings, effectively reducing reflection from the filter itself and glare, ensuring a high-quality image. Putter Design: This filter frame designed as a putter can help you accurately adjust the stop, for video shooting users can automatically adjust the stop via auxiliary tools, each stop from ND2 to ND400 be marked on the frame conveniently for 360-degree rotation to adjust the stop, multi-scene application. Hydrophobic & Scratch Resistant: Both glass sides of K&F CONCEPT ND filter with multi-layer hydrophobic, oil-proof, and scratch-resistant coating, protecting the nd filter from all around, suitable for adventure use. No Vignetting: For the filter designed with an ultra-wide-angle design, the ultra-slim frame is only 7.4mm, supporting in 16mm telephoto and wide-angle lens with no vignetting, due to the difference in lens type and focal length so this filter might be met dark"X" cross, this isn't the quality problem, it can disappear via rotating the filter.