{"product_id":"zwo-ruota-portafiltri-efw-5-1-25","title":"ZWO EFW 5×1.25\" Filter Wheel","description":"\u003cp\u003eThe \u003cstrong\u003eZWO EFW 5×1.25\"\u003c\/strong\u003e (Electronic Filter Wheel) is a compact motorised filter wheel designed for astrophotographers using ZWO ASI cameras. With \u003cstrong\u003e5 positions for 1.25\" or unmounted 31 mm filters\u003c\/strong\u003e, it enables automatic filter changes — LRGB, narrowband Ha\/SII\/OIII — without touching the optics and without losing focus. It is powered and controlled directly via the \u003cstrong\u003ebuilt-in USB-C hub of the ASI camera\u003c\/strong\u003e, eliminating extra cables.\u003c\/p\u003e\n\n\u003ch3\u003eAutomatic filter changes, always in focus\u003c\/h3\u003e\n\u003cp\u003eThe high-precision \u003cstrong\u003estepper motor\u003c\/strong\u003e reaches each position repeatably and silently. Filters sit only \u003cstrong\u003e10 mm from the sensor\u003c\/strong\u003e, eliminating any risk of vignetting even with fast focal ratio telescopes. The total optical path length is \u003cstrong\u003e20 mm\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eT2 connection and ASIAIR integration\u003c\/h3\u003e\n\u003cp\u003eBoth telescope-side and camera-side connections use the \u003cstrong\u003eT2 (M42×0.75)\u003c\/strong\u003e standard, compatible with virtually all ASI cameras. The EFW 5×1.25\" integrates natively with \u003cstrong\u003eASIAIR Mini, ASIAIR Plus, and ASIAIR Pro\u003c\/strong\u003e for automated filter sequences. An adapter is included in the box.\u003c\/p\u003e\n\n\u003ch3\u003eAluminium build, lightweight\u003c\/h3\u003e\n\u003cp\u003eThe CNC-machined \u003cstrong\u003ealuminium body\u003c\/strong\u003e ensures rigidity and thermal stability during long imaging sessions. At just \u003cstrong\u003e300 g\u003c\/strong\u003e, it is ideal for compact mounts and travel setups. Power draw of \u003cstrong\u003e120 mA\u003c\/strong\u003e makes it compatible with any USB hub or power bank.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\u003cth\u003eFilter positions\u003c\/th\u003e\u003ctd\u003e5\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eFilter format\u003c\/th\u003e\u003ctd\u003e1.25\" \/ 31 mm unmounted\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eTelescope-side connection\u003c\/th\u003e\u003ctd\u003eT2 (M42×0.75)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eCamera-side connection\u003c\/th\u003e\u003ctd\u003eT2 (M42×0.75)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eOptical length\u003c\/th\u003e\u003ctd\u003e20 mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eFilter-to-sensor distance\u003c\/th\u003e\u003ctd\u003e10 mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower supply\u003c\/th\u003e\u003ctd\u003eUSB-C (ASI camera hub)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003ePower consumption\u003c\/th\u003e\u003ctd\u003e120 mA\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMotor type\u003c\/th\u003e\u003ctd\u003eStepper motor\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eMaterial\u003c\/th\u003e\u003ctd\u003eAluminium\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eWeight\u003c\/th\u003e\u003ctd\u003e300 g\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003cth\u003eManufacturer\u003c\/th\u003e\u003ctd\u003eZWO (Suzhou ZWO Co., Ltd.)\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"ZWO","offers":[{"title":"Default","offer_id":57592764891467,"sku":"ZWZWO-EFW-5x1.25-25","price":249.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0886\/1981\/1147\/files\/zwo-ruota-portafiltri-efw-5x1-25-astronomia.jpg?v=1781618890","url":"https:\/\/adriasky.it\/en\/products\/zwo-efw-5x1-25-electronic-filter-wheel","provider":"Adriasky","version":"1.0","type":"link"}