SVBONY SV157 Telescope Extension Tube 1.25 Inch Telescope Eyepiece Extension Tube Bundle with 0.5X Focal Reducer, 1.25 inches Fully Multi Coated

SVBONY SV157 telescope extension tube have a 34mm optical length, lightweight and compact size, Suitable for standard 1.25 inches accessories; Ideal for astrophotography and observation. The inside of the adapter is fully threaded to minimize reflections. The extension tube has a brass compression ring in the connection port, which can effectively prevent scratches on your precious equipment.1.25" 0.5x Focal Reducer for Telescope Eyepiece Photography and Observing. A wonderful tool for astrophotography telescopes: reduce exposure time and simplify astrophotography, suitable for shooting. Capture wider field of view, the focal reducer is good for visual use for a bigger FOV and is indispensable when CCD imaging. The case is made of metal, which better protects the product itself and prolongs its service life.

• Compatible with 1.25" telescope focusers;and accepts 1.25" eyepieces or accessories; the end of the adapter is threaded for use with standard 1.25-Inch filters
• With an aluminum locking thumbscrews to secure any inserted astronomy accessory; and with humanized brass pressure ring to prevent the marring of your telescope accessories
• Using high-quality manufacturing materials; machined of aluminum and anodized black; durable for long time use
• 0.5x focal reducer cuts the telescopes focal length in 0.5 times of original's to get a wider field of view
• Fully anti-reflection coatings on all air-glass surfaces for increased contrast