{"product_id":"urth-40-5mm-circular-polariser-standard","title":"Urth 40.5mm Circular Polariser (Standard)","description":"\u003ch3\u003eBuy with confidence\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eStock\u003c\/th\u003e\n\u003ctd\u003eIn stock at Bass \u0026amp; Bligh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDealer\u003c\/th\u003e\n\u003ctd\u003eBass \u0026amp; Bligh is an authorised UK Urth dealer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp class=\"at-a-glance\"\u003e\u003cstrong\u003eAt a glance:\u003c\/strong\u003e A Standard-tier circular polariser for 40.5mm lens threads, with Japanese AGC glass and a multi-layer coating, for deeper skies and less surface glare.\u003c\/p\u003e\u003ch3\u003eAbout this accessory\u003c\/h3\u003e\u003cp\u003eUrth's Standard CPL in 40.5mm is a circular polarising filter made with Japanese AGC glass. A multi-layer coating helps clarity, and the ultra-slim aluminium ring carries a lifetime warranty.\u003c\/p\u003e\u003cp\u003eYou turn the front ring until reflections fade or the sky darkens, and the effect is strongest at roughly 90 degrees to the sun. A polariser reduces light reaching the sensor, so expect a slower shutter speed or higher ISO. Plus+ moves to SCHOTT B270 glass with a 20-layer coating.\u003c\/p\u003e\u003ch4\u003eBuild \u0026amp; handling\u003c\/h4\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFilter type\u003c\/th\u003e\n\u003ctd\u003eCircular polariser (CPL)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTier\u003c\/th\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFilter thread\u003c\/th\u003e\n\u003ctd\u003e40.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eGlass\u003c\/th\u003e\n\u003ctd\u003eJapanese AGC optical glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCoating\u003c\/th\u003e\n\u003ctd\u003eMulti-layer nano-coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFrame\u003c\/th\u003e\n\u003ctd\u003eUltra-slim aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eLifetime\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch4\u003eWorks with\u003c\/h4\u003e\u003cul\u003e\u003cli\u003eLenses with a 40.5mm filter thread\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eBest for\u003c\/h3\u003e\u003cp\u003eBest for landscape, waterside and architecture photography with a 40.5mm lens: lakes, rivers, shop windows, damp woodland and blue skies over the Dales. It helps most in bright, clear daylight.\u003c\/p\u003e\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch4 itemprop=\"name\"\u003eIs this the right filter for a 40.5mm lens thread?\u003c\/h4\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003eAny lens with a 40.5mm front thread will take it. Look for the diameter symbol (ø) followed by a number on the front of the lens barrel or inside the lens cap. If it reads 40.5, this filter screws straight on.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch4 itemprop=\"name\"\u003eHow do I use a circular polariser?\u003c\/h4\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003eFit it to the lens and turn the outer ring until you see the glare drop. It works best when the camera is pointing across the sun, not directly into or away from it.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch4 itemprop=\"name\"\u003eDoes a circular polariser need exposure compensation?\u003c\/h4\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003eA polariser absorbs some light, so expect a slower shutter speed or higher ISO. Cameras with through-the-lens metering will usually adjust for you.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch4 itemprop=\"name\"\u003eWhat is the difference between circular and linear polarisers?\u003c\/h4\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cp itemprop=\"text\"\u003eCircular polarisers are designed to work with autofocus and metering systems on modern digital cameras, which is why this one is the usual choice. Linear types can confuse some camera systems.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Urth","offers":[{"title":"Default Title","offer_id":57664600572279,"sku":"UCPLST40","price":29.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1521\/5650\/files\/CPLStandard_1_81104e1e-cffc-4bca-b70e-f59496fe983d.jpg?v=1793537280","url":"https:\/\/bassandbligh.com\/products\/urth-40-5mm-circular-polariser-standard","provider":"Bass \u0026 Bligh","version":"1.0","type":"link"}