{"product_id":"aluminium-bahtinov-focusing-mask-150-200mm-ota","title":"Aluminium Bahtinov Focusing Mask – 150–200 mm OTA","description":"\u003cp\u003eA durable aluminium Bahtinov mask for fast, repeatable focus confirmation during telescope imaging with compatible 150–200 mm optical tubes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFree standard shipping Australia-wide.\u003c\/strong\u003e\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDiffraction-spike focusing pattern\u003c\/li\u003e\n\u003cli\u003eAluminium alloy construction\u003c\/li\u003e\n\u003cli\u003eAdjustable fit for compatible optical tubes\u003c\/li\u003e\n\u003cli\u003eUseful for astrophotography and camera-assisted focusing\u003c\/li\u003e\n\u003cli\u003eReusable alternative to lightweight plastic masks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSelected model: 140 mm mask\u003c\/li\u003e\n\u003cli\u003eCompatible telescope outer diameter: 150–200 mm\u003c\/li\u003e\n\u003cli\u003eMaterial: aluminium alloy\u003c\/li\u003e\n\u003cli\u003eType: Bahtinov focus aid\u003c\/li\u003e\n\u003cli\u003eCheck clear aperture and retaining arrangement before purchase\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat's included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBahtinov focusing mask\u003c\/li\u003e\n\u003cli\u003eAdjustable retaining hardware as supplied\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility \u0026amp; safe use\u003c\/h3\u003e\u003cp\u003eRemove the mask before imaging. Never use it for solar observation, and secure it carefully so it cannot fall onto optics or equipment.\u003c\/p\u003e\u003cp\u003ePlease check the stated dimensions, interface and compatibility before ordering.\u003c\/p\u003e","brand":"Generic","offers":[{"title":"Default Title","offer_id":54350698086764,"sku":"CT-650","price":69.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/4894\/5772\/files\/S8205e4dd567e45c385291d712c6a5ac50.webp?v=1789214031","url":"https:\/\/linein.com.au\/products\/aluminium-bahtinov-focusing-mask-150-200mm-ota","provider":"Linein.com.au","version":"1.0","type":"link"}