Metal Bahtinov Mask Focusing Mask Aluminum Alloy Astronomical Telescope Accessory with 60mm Aperture for Amateur and Professional Astronomers

Package Include 1 x Focusing Mask Characteristics - Color: Black. - Size: 9.50X9.50X0.10cm/3.73X3.73X0.04in - Material: Aluminum alloy. -Product Info:Metal fish - It is manufactured with professional technology to ensure the of the product and can work for a long time bahtinov aluminum mask. - Focusing mask is to help you focus quickly. It can help you achieve a perfect focus webcam in seconds aluminum bahtinov mask. - Focusing mask is made of metal. It is very lightweight and will not become a burden to maintain the balance of the telescope telescope bahtinov mask - With 3 holes. The mask can be easily connected to any telescope by 3 screws telescope focusing mask. - Focusing mask with 3 fixing screws; they have a scratch-resistant silicone sleeve to protect your precious telescope from bahtinov mask focusing mask.Goods Descriptionaluminum bahtinov mask Suitable for use on all types of telescope, reflectors, refractors.bahtinov mask aluminum The best focus for your telescope quickly and easily.telescope bahtinov mask Focusing masks take the guesswork out of focusing and even get over the seeing conditions as it is a mathematical type approach to the task

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• Bahtinov aluminum mask--focusing mask with 3 fixing screws; they have a scratch-resistant silicone sleeve to protect your precious telescope from,telescope focusing mask
• Bahtinov focus mask--these focusing masks are adjustable to fit a wide range of optical tubes, unlike mask which are only able to telescope,focus mask