77mm Thread DSLR Camera lense Bahtinov Focus Mask for Camera Lense. Condition is New. Shipped with USPS first class mail. Free shipping! 3d printed from spencer-3d. Made with Carbon Fiber plastic. Black. Other colors available just message if want in another color. Or if need a Bahtinov mask that fits your telescope or camera lense  Let me know the brand and information and I can make what you need. I have many designs thats not posted on ebay, for Cannon and other similar DSLR 77mm. Has spring type pressure thread fit.