High-Quality Construction: Crafted from aluminum alloy with a sleek black finish, these extension tubes offer excellent stability, lightweight handling, and resistance against wear and tear.
Enhanced Optical Performance: Each tube undergoes an internal extinction treatment featuring threaded design to minimize light reflection and improve image clarity during stargazing sessions.
Versatile Extension Set: The kit includes 8 accuracy manufactured lens adapters (3mm, 5mm, 7mm, 10mm, 12mm, 15mm, 20mm, 30mm) for customizing and extending the focal length of the telescope's primary mirror.
Universal Compatibility: The telescope lens extension rings are equipped with standard M42x0.75mm female and male threads on both ends to ensure seamless integration with a wide range of astronomical telescopes and accessories.
CNC Technology-- This lens extension ring kit is machined using advanced CNC technology, each link is precisely measured to ensure fit and long service life.