{"product_id":"67mm-ultra-low-reflectivity-variable-nd-filter-nd2-nd400-smooth","title":"67mm Ultra-Low Reflectivity Variable ND Filter ND2-ND400 - Smooth","description":"\u003cp\u003eIn this review the reviewer looks at the 67mm variable neutral density filter from K\u0026amp;F CONCEPT and finds it best for photographers and videographers who need precise exposure control without sacrificing image quality. The single biggest reason to buy is its ultra-low reflection technology combined with a marked, push-pull putter adjustment that makes stop selection quick and repeatable, so creative long exposures and controlled motion blur are easier to achieve in bright conditions.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eUltra-low Reflection Technology:\u003c\/strong\u003e Reflectivity reduced to about 0.1% cuts ghosting and flare when shooting backlit scenes for cleaner highlights and better contrast.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHigh-Definition AGC Glass:\u003c\/strong\u003e Imported AGC optical glass is polished flat to preserve sharpness and deliver consistent, high-definition imaging across the frame.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePutter Adjustment Frame:\u003c\/strong\u003e The push-pull lever design and clearly marked stops from ND2 to ND400 let users set precise exposures and rotate smoothly for varied compositions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e28 Multi-Layer Coatings:\u003c\/strong\u003e Nano-level multi-coating reduces reflections, adds water and scratch resistance, and improves durability and anti-smudge performance in the field.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eNo Vignetting Design:\u003c\/strong\u003e A 7.4mm thin frame prevents vignetting in most lenses, with real-world use showing no vignetting beyond 19mm for stills and beyond 17mm for video.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe filter suits photographers and hobbyist videographers who shoot outdoors in bright light and need adjustable stops from ND2 to ND400 without swapping glass. Landscape shooters who want smooth long exposures and filmmakers who require precise aperture control will appreciate the marked stops and low-reflection coatings.\u003c\/p\u003e\n\u003cp\u003eThose using very wide lenses under 17mm in video or under 19mm in stills should check for compatibility first, and studio photographers who rarely shoot in bright ambient light may not need a variable ND. Users seeking ultra-compact or very low-cost disposable solutions should look elsewhere.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eVery low reflectivity reduces ghosting and preserves contrast in backlit situations.\u003c\/li\u003e\n \u003cli\u003eFlat AGC glass maintains image sharpness and delivers high-definition results.\u003c\/li\u003e\n \u003cli\u003ePutter-style adjustment with clearly marked stops allows repeatable exposure settings for video and photo workflows.\u003c\/li\u003e\n \u003cli\u003eDurable multi-coatings add water and scratch resistance for field use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eVariable NDs can introduce color shifts at extreme settings, so users may need to correct color in post.\u003c\/li\u003e\n \u003cli\u003eVery wide-angle setups below the noted focal ranges should be tested for vignetting before critical shoots.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eFilter Diameter\u003c\/td\u003e\n\u003ctd\u003e67mm\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eDensity Range\u003c\/td\u003e\n\u003ctd\u003eND2 to ND400 (1-9 stops)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eGlass Type\u003c\/td\u003e\n\u003ctd\u003eImported AGC optical glass\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003e28 multi-layer nano coatings (waterproof, scratch-resistant)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eFrame Design\u003c\/td\u003e\n\u003ctd\u003ePush-pull putter with marked stops and 360-degree rotation\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eFrame Thickness\u003c\/td\u003e\n\u003ctd\u003e7.4mm (no vignetting beyond 19mm stills \/ 17mm video)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe K\u0026amp;F CONCEPT 67mm variable ND is a practical, high-value tool for outdoor photographers and videographers who need flexible exposure control with minimal flare. Its ultra-low reflectivity, flat AGC glass and durable multi-coatings make it a reliable choice for landscape and motion work, while the putter adjustment gives accurate, repeatable stops. It is recommended for most users shooting at moderate focal lengths who want predictable ND performance.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this filter cause vignetting on wide lenses?\u003c\/strong\u003e\u003cbr\u003eThe 7.4mm thin frame is designed to avoid vignetting; tests show no vignetting beyond about 19mm for stills and 17mm for video, but very wide lenses should be tested on your camera.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the filter affect sharpness?\u003c\/strong\u003e\u003cbr\u003eNo, the polished AGC optical glass preserves a flat surface to maintain sharpness and high-definition image quality when used correctly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do you set exact stops?\u003c\/strong\u003e\u003cbr\u003eThe push-pull putter frame has clearly marked stops from ND2 to ND400 and allows smooth 360-degree rotation so users can select and repeat precise exposure settings.\u003c\/p\u003e","brand":"K\u0026F CONCEPT","offers":[{"title":"Default Title","offer_id":48186725826779,"sku":"B0FD9Q3NFN","price":92.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71Asu5N8J8L._AC_SL1500.jpg?v=1769515211","url":"https:\/\/gearmusthave.com\/products\/67mm-ultra-low-reflectivity-variable-nd-filter-nd2-nd400-smooth","provider":"GearMustHave","version":"1.0","type":"link"}