{"product_id":"lock-ring-for-canon-ef-300mm-f-2-8-l-usm-lens","title":"Lock Ring for Canon EF 300mm f\/2.8 L USM lens.","description":"\u003cp\u003e\u003cb\u003eA lock ring is included with every lens hood order\u003c\/b\u003e if required by the lens hood.\u003cbr\u003eLock Ring for Canon EF 300mm f\/2.8 L USM lens. Compatible with Zemlin Photo HZ-118 \u0026amp; HZ-120 Series Hoods. Approximate weight: 34g. Order only as a replacement or if using a hood on multiple lenses.  Photo shows a newer 300mm lens which takes a similar ring.\u003c\/p\u003e","brand":"Zemlin Photo","offers":[{"title":"Default Title","offer_id":43182280933582,"sku":"HZ-118.RING","price":34.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/8001\/9150\/files\/hz-118-ring-4.jpg?v=1759755037","url":"https:\/\/www.zemlinphoto.com\/products\/lock-ring-for-canon-ef-300mm-f-2-8-l-usm-lens","provider":"Zemlin Photo","version":"1.0","type":"link"}