{"product_id":"k-f-concept-variable-nd-filter-nd2-nd400-blue-coated-77mm","title":"K\u0026F Concept Variable ND Filter ND2-ND400 Blue Coated 77mm","description":"\u003ch2\u003eK\u0026amp;F Concept Variable ND Filter ND2-ND400 Blue Coated 77mm | Adjust light without swapping filters\u003c\/h2\u003e\n\u003cp\u003eOn a bright afternoon, you may want to keep a wide aperture or use a slower shutter without letting too much light reach the sensor. The K\u0026amp;F Concept Variable ND Filter is designed for situations where you want to reduce incoming light while keeping your chosen exposure approach. Instead of changing between separate fixed-strength filters, you can adjust the filter as conditions change. That suits video makers managing exposure in daylight, and photographers working toward longer exposures outdoors. It can also help when you want to keep a wider aperture in bright conditions. The result still depends on the light and camera settings, so treat the filter as exposure control rather than a preset look. For day-to-day use, its appeal is simple: adjust light at the lens instead of reaching for another filter.\u003c\/p\u003e\n\u003cdiv class=\"specialist-note\"\u003e\n\u003ch3\u003eSpecialist Note\u003c\/h3\u003e\n\u003cp\u003eThis variable ND filter lets you adjust light reduction without changing between separate fixed-strength filters. For video, set your preferred shutter speed first, then turn the filter to bring exposure into line as daylight shifts. For a daytime long exposure, increase the density and lengthen the shutter time to suit the scene. The ND2–ND400 range gives you a broad adjustment span, though you’ll still need to judge exposure at the stronger end. The 77mm size is a fit requirement: it’s for a lens with a matching filter thread. The blue coating is identified in the name; I wouldn’t take that alone as a promise of a particular color effect.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: K\u0026amp;F Concept\u003c\/li\u003e\n\u003cli\u003eFilter type: Variable ND\u003c\/li\u003e\n\u003cli\u003eND range: ND2–ND400\u003c\/li\u003e\n\u003cli\u003eCoating: Blue coated\u003c\/li\u003e\n\u003cli\u003eFilter size: 77mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K\u0026F Concept","offers":[{"title":"Default Title","offer_id":57492114047316,"sku":"KF-01.1405","price":25.81,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/2493\/3716\/files\/KF-01.1405_01.jpg?v=1791544467","url":"https:\/\/www.htf-store.com\/fr\/products\/k-f-concept-variable-nd-filter-nd2-nd400-blue-coated-77mm","provider":"Hard to Find Camera Store","version":"1.0","type":"link"}