Svbony Bahtinov Focusing Mask Aluminum Alloy 150-200mm

Delivery: Ships from Svbony warehouse located in Hong Kong. The estimated delivery time is 10 business days. 30 days returns policy. Returns location: Rancho Cordova, California, United States.   Features:  Quickly and easily help your telescope focus; SVBONY Bahtinov focusing mask is to help you focus quickly; it can help you achieve perfect focus CCD DSLR or webcam in seconds Sturdy aluminum alloy structure; SVBONY Bahtinov focusing mask is made of hard aluminum alloy material instead of cheap plastic; the overall use of anodized aluminum process; which guarantees its durability Thoughtful detailing; SVBONY Bahtinov focusing mask with 3 fixing screws; they have a scratch-resistant silicone sleeve to protect your precious telescope surface from scratches Ultra-thin and no-burden accessories; although the SVBONY Bahtinov focusing mask is made of metal; it is very lightweight and will not become a burden to maintain the balance of the telescope Universal adaptability; with 3 holes; the