3x Barlow Lens 1.25" Fully Multi-Coated Metal | M42 Thread

3x Barlow Lens – Fully Multi-Coated Metal Body for 1.25" Telescope Eyepieces

Unlock the full potential of your telescope with the Kesoto 3x Barlow Lens. Engineered for astronomy enthusiasts and stargazers, this 1.25-inch Barlow lens triples the magnification of any compatible eyepiece — letting you explore the Moon's craters, bright planets, nebulae, and stunning celestial scenery in sharp, detailed clarity.

Why Choose This Barlow Lens?

• 3x Magnification Boost: Instantly triple the power of your existing 1.25" eyepieces without purchasing new ones.
• Fully Multi-Coated Optics: Multi-layer anti-reflective coatings on all glass surfaces maximize light transmission, reduce glare, and deliver crisp, high-contrast views.
• Premium Metal Body: The durable, anti-rust metal shell resists deformation and wear — built to last through years of observing sessions.
• M42 x 0.75mm Camera Thread Interface: Connects directly to DSLR and mirrorless cameras via the standard M42 x 0.75mm thread, making astrophotography straightforward.
• Preserves Exit Pupil: Unlike some magnification solutions, this Barlow lens adds magnification without reducing the exit pupil of your eyepiece, keeping views bright and comfortable.
• Universal 31.7mm (1.25") Fit: Designed to fit the standard 1.25-inch focuser found on the vast majority of telescopes.
• Versatile Use: Perfect for lunar and planetary observation, bright celestial observations, nebula viewing, and terrestrial scenery.

How to Use

1. Insert your chosen 1.25" eyepiece into the top of the Barlow lens.
2. Insert the assembled Barlow + eyepiece unit into your telescope's focuser.
3. Focus as normal and enjoy 3x the magnification.
4. For astrophotography, attach your camera directly via the M42 x 0.75mm thread interface.

Specifications

Package Includes

• 1 x 3x Barlow Lens (1.25" / 31.7mm, M42 x 0.75mm Thread)

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Frequently Asked Questions

Q: What telescope eyepieces are compatible with this 3x Barlow lens?

A: This Barlow lens is compatible with any standard 1.25-inch (31.7mm) telescope eyepiece. The vast majority of consumer and hobbyist telescopes use this barrel size, making it a highly versatile addition to your astronomy kit.

Q: Can I use this Barlow lens for astrophotography with my DSLR camera?

A: Yes! The built-in M42 x 0.75mm thread interface allows you to attach a compatible DSLR or mirrorless camera directly to the Barlow lens for astrophotography. You may need an M42-to-your-camera-mount adapter depending on your camera brand.

Q: Will the 3x Barlow lens affect image brightness?

A: Any increase in magnification will spread light over a larger area, which can reduce brightness at very high powers. However, the fully multi-coated optics on this lens maximize light transmission to keep images as bright and sharp as possible, and the design preserves the exit pupil of your eyepiece.

Q: Is the metal body truly rust-resistant?

A: Yes, the shell is crafted from quality metal with an anti-rust, anti-deformation finish — designed for long-term durability through regular use and varied observing conditions.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.