{"v":"2.0","page_type":"product","title":"@@ Grey Neutral Density filters compensate for bright light. @@ By under-exposing the sky, they give a better relief to the surfaces and colors of landscapes and architecure. @@ They are indispensable in summer, for seaside and mountain photos. @@ They are available in six choices to cover every situation. 120 - 2x graduated neutral density filter reduces the light 1 stop 121 - 8x graduated neutral density filter reduces the light 3 stops. 121L - 2x Light starts with the same neutral density as 120, but feathers the grey almost from the color edge and more gently graduates to clear. One stop of compensation. 121M - 4x Medium is the same gentle graduation as 121L but with twice in dens ty. Requires 2 stops of compensation. 121S - 8x Soft is twice the density of 121M and the graduation extends to 3/4 of the filter. Requires 3 stops. 121F - 8x Full is the same as 121S except that the neutral density grey cover the entire filter. Requires 3 stops","breadcrumbs":[{"label":"Home","href":"/python/html6/index.html"},{"label":"Brands","href":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html"},{"label":"Cokin","href":"/python/html6/menu_brand_products/1000/33000/menu_brand_products_Cokin_1_0fcbfb42df.html"},{"label":"Cokin Grad. ND4 P121","href":null}],"content":{"product":{"mpn":"Cokin Grad. ND4 P121","manufacturer":"Cokin","brand":"Cokin","brand_url":"/python/html6/menu_brand_products/1000/33000/menu_brand_products_Cokin_1_0fcbfb42df.html","title":"@@ Grey Neutral Density filters compensate for bright light. @@ By under-exposing the sky, they give a better relief to the surfaces and colors of landscapes and architecure. @@ They are indispensable in summer, for seaside and mountain photos. @@ They are available in six choices to cover every situation. 120 - 2x graduated neutral density filter reduces the light 1 stop 121 - 8x graduated neutral density filter reduces the light 3 stops. 121L - 2x Light starts with the same neutral density as 120, but feathers the grey almost from the color edge and more gently graduates to clear. One stop of compensation. 121M - 4x Medium is the same gentle graduation as 121L but with twice in dens ty. Requires 2 stops of compensation. 121S - 8x Soft is twice the density of 121M and the graduation extends to 3/4 of the filter. Requires 3 stops. 121F - 8x Full is the same as 121S except that the neutral density grey cover the entire filter. Requires 3 stops","description":"","attributes":[{"name":"Brand name","values":[{"value":"Cokin","url":"/python/html6/menu_attr_pair/1000/13000000/13299000/menu_attr_pair_Brandname_Cokin_1_b2f13c6834.html"}],"name_url":"/python/html6/menu_attr_pair/1000/13000000/13299000/menu_attr_pair_Brandname_Cokin_1_b2f13c6834.html"},{"name":"Manufacturer name","values":[{"value":"Cokin","url":"/python/html6/menu_attr_pair/1000/66000000/66543000/menu_attr_pair_Manufacturername_Cokin_1_46ce7e4cf9.html"}],"name_url":"/python/html6/menu_attr_pair/1000/66000000/66543000/menu_attr_pair_Manufacturername_Cokin_1_46ce7e4cf9.html"},{"name":"Manufacturer","values":[{"value":"Cokin","url":"/python/html6/menu_attr_pair/1000/26000000/26540000/menu_attr_pair_Manufacturer_Cokin_1_9fbadea738.html"}],"name_url":"/python/html6/menu_attr_pair/1000/26000000/26540000/menu_attr_pair_Manufacturer_Cokin_1_9fbadea738.html"}],"images":[],"distributors":[{"name":"Walmart","sku":"186117464","url":"https://www.walmart.com/ip/Cokin-P-Series-P121M-Graduated-Neutral-Density-Filter-Grey-G2-Medium-ND4-Filter-CP121M/186117464","pricing":[{"quantity":1,"price_usd":28.01}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://i5.walmartimages.com/asr/86a3bcc0-1560-4bbc-9143-ea35c9f788cd_1.e534afde50b58b8cc982bebb1592350e.jpeg?odnHeight=450&odnWidth=450&odnBg=FFFFFF"}],"amazon":{"available":false,"products":[]},"metadata":{"generated_date":"2026-09-17","last_updated":"2026-09-17","data_sources":["Walmart"],"completeness":0.55,"version":"1.2"}}},"pagination":null,"nav":{"home":"/python/html6/index.html","brands":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html","parts":"/python/html6/menu_part_index/menu_part_index_parts_909e6bf0ca.html","attributes":"/python/html6/menu_attr_index/menu_attr_index_attributes_d7f67a250d.html"}}