Bahtinov Focusing Mask for 63–89 mm Telescopes

Description

• Diffraction pattern: The unique fishbone design creates 3 pairs of spikes to help achieve correct focus alignment and maximize telescope clarity.
• Secure fit: Three metal posts prevent slipping and keep the mask centered for stable focusing on different telescopes.
• Lightweight and durable: Made from a 1 mm thick aluminum alloy, the lightweight yet sturdy construction maintains balance without causing damage.
• Precise focusing: Eliminates guesswork and quickly achieves optimal focus under various viewing conditions for improved telescope performance.
• Universal compatibility: Suitable for reflectors, refractors, Dobsonians, Maksutov-Cassegrains, and SCTs with 6389 mm outer diameters.

A Bahtinov focusing mask for telescopes with 6389 mm outer diameters. Its unique fishbone design produces 3 pairs of diffraction spikes to help align focus precisely. Three metal posts keep the mask centered and secure, while the 1 mm aluminum alloy construction is lightweight and durable. Suitable for reflectors, refractors, Dobsonians, Maksutov-Cassegrains, and SCTs. Specifications: Item type: Telescope focusing mask Material: Brass, aluminum alloy, rubber Weight: Approx. 47 g / 1.7 oz Package contents: 1 x Telescope focusing mask

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