Astronomical Telescope Accessories, Multi-Coated Astronomical Telescope, Barlow Lens, Fully Multi-Coated, 1.25 ", 3 Element, 2.5X,for Observation

==========High-concerned chemical : NoneBarrel Size : 1.25 inches (31.7 mm)Magnification : 2.5XType : Monocular

• Standard 1.25-inch or 2-inch interface compatible with eyepieces and star diagonals of mainstream telescopes. Internal tube features anti-reflection threads to suppress stray light, improving contrast.
• Compatible with standard 1.25-inch telescope interface, this 2.5X Barlow lens effectively extends the focal length of astronomical telescopes and improves magnification effect.
• Built with 3-element optical lens structure, its optimized internal light path reduces imaging distortion and presents delicate celestial viewing images.
• Fully multi-coated lenses enhance light transmission, minimize surface reflection and stray light interference for a more transparent observation field.
• Universal Barlow lens design with great compatibility fits most ordinary 1.25-inch astronomical eyepieces for flexible combined application.
• It features tight and stable interface connection, supporting easy installation and removal without extra auxiliary tools for daily use.
• Threaded locking interface for secure, wobble-free connection. Works with eyepieces and cameras for high-magnification planetary photography or close-up lunar surface imaging.