{"product_id":"k-f-concept-77mm-black-diffusion-mist-variable-nd-cpl-filter","title":"K\u0026F CONCEPT 77mm Black Diffusion Mist + Variable ND \u0026 CPL Filter","description":"\u003cp\u003eOur review finds the K\u0026amp;F CONCEPT 77mm Black Diffusion Mist Effect 1\/4 + Variable ND2-32 + CPL is a compact, all-in-one solution for photographers who want to shape light and mood without swapping multiple filters. For portrait and landscape shooters who value subtle glow, color control and flexible exposure reduction, this filter combines a softening diffusion, a continuous ND range of 1 to 5 stops and a circular polarizer in a single 77mm unit. The main reason to buy is the convenience of three distinct creative effects in one durable, multi-coated filter that avoids the cross-shaped vignetting common with some variable NDs.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-in-1 design:\u003c\/strong\u003e Combines diffusion, variable neutral density and circular polarizer to cover dreamy highlights, exposure control and reflection reduction without changing filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable ND without X cross:\u003c\/strong\u003e Self-locking rotating frame allows smooth adjustment between ND2 and ND32, helping position light reduction precisely and preventing black cross artifacts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoft highlight flares:\u003c\/strong\u003e The black diffusion 1\/4 surface softens skin texture and highlight edges to produce gentle, film-like flares ideal for portraits and creative stills.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced color and contrast:\u003c\/strong\u003e The CPL element reduces reflections on glass and water, increasing saturation and contrast in skies and foliage for more vivid landscape images.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide compatibility:\u003c\/strong\u003e Threaded for 77mm lenses so it fits a broad range of professional and enthusiast lenses when the thread size matches.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe filter is best for portrait, editorial and landscape photographers who want a portable creative tool that adds dreamy diffusion while retaining the ability to control exposure and cut reflections. It suits shooters who prefer minimal kit swaps and who often work in daylight or mixed-light scenes where both polarizing and exposure control are useful.\u003c\/p\u003e\u003cp\u003ePhotographers who need heavy neutral density for long exposures beyond five stops, or those who shoot with lenses that are not 77mm, should look elsewhere or use step-up\/step-down adapters. Also, studio photographers seeking perfectly neutral optical performance without any glow may prefer single-purpose glass filters.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThree functions in one filter reduce the need to carry and switch multiple filters on location.\u003c\/li\u003e\n\u003cli\u003eSelf-locking, infinitely rotating ND section provides smooth adjustment and reduces the risk of X cross artifacts.\u003c\/li\u003e\n\u003cli\u003eDiffusion softens skin and highlights for a flattering, film-like look without heavy post processing.\u003c\/li\u003e\n\u003cli\u003eCPL boosts color saturation and contrast by removing unwanted reflections from non-metallic surfaces.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaximum light reduction is limited to about 1 to 5 stops, so it is not suited to extreme long exposure work.\u003c\/li\u003e\n\u003cli\u003eBeing an all-in-one filter, it may not match the absolute optical purity of specialized, single-function filters for some demanding applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eK\u0026amp;F CONCEPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter thread size\u003c\/td\u003e\n\u003ctd\u003e77mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctions\u003c\/td\u003e\n\u003ctd\u003eDiffusion 1\/4, Variable ND2-32 (1-5 stops), Circular Polarizer (CPL)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eND adjustment\u003c\/td\u003e\n\u003ctd\u003eContinuous rotation, self-locking frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003e18 multi-coatings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEffect on images\u003c\/td\u003e\n\u003ctd\u003eSoft highlight flares, enhanced color and contrast, reduced reflections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe K\u0026amp;F CONCEPT 77mm 3-in-1 filter is a practical, value-minded choice for photographers who want creative diffusion, moderate exposure control and polarizing effects without carrying three separate filters. It delivers a pleasing film-like glow and reliable polarizing contrast while avoiding common variable ND cross artifacts, making it a solid everyday tool for portraits and landscapes when a 77mm fit is available.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill this fit my lens?\u003c\/strong\u003e\u003cbr\u003eIt fits lenses with a 77mm front thread; confirm the number beside the 'phi' or diameter symbol on your lens before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the variable ND produce X cross artifacts?\u003c\/strong\u003e\u003cbr\u003eThe filter uses a self-locking rotating frame designed to rotate smoothly between 1 and 5 stops and avoid black cross artifacts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I still need a lens cap size change?\u003c\/strong\u003e\u003cbr\u003eYes, the product notes that an 82mm lens cap is required for this 77mm 3-in-1 filter when using certain cap setups.\u003c\/p\u003e","brand":"K\u0026F CONCEPT","offers":[{"title":"Default Title","offer_id":48255882526939,"sku":"B0DT5Q15CH","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81VizndXytL._AC_SL1500_a273e0fb-383c-4ac2-ae7f-fba74ddd8b9e.jpg?v=1778319095","url":"https:\/\/gearmusthave.com\/products\/k-f-concept-77mm-black-diffusion-mist-variable-nd-cpl-filter","provider":"GearMustHave","version":"1.0","type":"link"}