{"product_id":"sigma-filter-82mm-wr-ceramic-protector-ptc-21","title":"Sigma Filter 82mm WR Ceramic Protector PTC-21","description":"\u003ch2\u003eSigma Filter 82mm WR Ceramic Protector PTC-21 | Front-of-lens protection\u003c\/h2\u003e\n\u003cp\u003eKeep a protective layer in front of your lens while you frame everyday scenes. The Sigma Filter 82mm WR Ceramic Protector PTC-21 is a protection filter in an 82mm size, for photographers whose lens takes that filter size and who want a dedicated protector in their kit. Its purpose is simple: sit at the front of the lens as a protective layer while you get on with taking pictures. That makes sense for street photography, family moments or travel days, when you’d rather focus on the scene than handle the lens front directly. The WR Ceramic name identifies this particular Sigma model; its stated role is protection, rather than a creative filter effect. Choose it by the 82mm size first, then by the product name. If your lens doesn’t take an 82mm filter, this isn’t the right size for it.\u003c\/p\u003e\n\u003cdiv class=\"specialist-note\"\u003e\n\u003ch3\u003eSpecialist Note\u003c\/h3\u003e\n\u003cp\u003eThe 82mm rim is the detail I’d use to make the decision: match that size to your lens and you have a dedicated front protector, rather than an accessory chosen by appearance alone. The ceramic designation identifies this specific version, so it’s useful to keep the full model name in mind when selecting it. I’d consider it for day-to-day photography, such as street scenes or family outings, where you want a protective filter in place as you work. My practical caution is sizing: 82mm is the deciding measurement, so it suits a lens that uses that filter size. If that matches your lens, the PTC-21 has a clear, focused job in your setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Sigma\u003c\/li\u003e\n\u003cli\u003eProduct type: Protection filter\u003c\/li\u003e\n\u003cli\u003eFilter size: 82mm\u003c\/li\u003e\n\u003cli\u003eDesignation: WR Ceramic Protector\u003c\/li\u003e\n\u003cli\u003eModel: PTC-21\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sigma","offers":[{"title":"Default Title","offer_id":57512904982868,"sku":"AFH9E1","price":150.67,"currency_code":"EUR","in_stock":false}],"url":"https:\/\/www.htf-store.com\/es\/products\/sigma-filter-82mm-wr-ceramic-protector-ptc-21","provider":"Hard to Find Camera Store","version":"1.0","type":"link"}