{"product_id":"artesky-prolunga-m48-3mm-m483","title":"Artesky M48 Extension Ring 3mm – M48x0.75 Spacer","description":"\u003ch2\u003eArtesky M48 Extension Ring 3mm – M48x0.75 Spacer\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eArtesky M48 Extension Ring 3mm\u003c\/strong\u003e is a threaded spacer with \u003cstrong\u003eM48x0.75 male\/female threading\u003c\/strong\u003e, designed for fine backfocus adjustment in astrophotography optical trains. At just 3mm in length, it provides minimal spacing corrections without altering the optical path.\u003c\/p\u003e\u003cp\u003eCompatible with filters, filter wheels, focal reducers, and CCD\/CMOS cameras with M48 threading. Made from black anodized aluminum for mechanical rigidity and internal reflection-free performance.\u003c\/p\u003e","brand":"Artesky","offers":[{"title":"Default Title","offer_id":51260734406987,"sku":"AKM483","price":18.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0886\/1981\/1147\/files\/prolunga-m48-3mm-artesky.jpg?v=1756460679","url":"https:\/\/adriasky.it\/en\/products\/artesky-m48-extension-ring-3mm","provider":"Adriasky","version":"1.0","type":"link"}