Explore Scientific 3x Focal Extender (Telextender) 1.25 Inch

🌌 Premium 3x Telecentric Focal Extender for High-Magnification Astronomy

The Explore Scientific TeleXtender 3x (1.25”) is a high-performance telecentric focal extender designed to significantly increase your telescope’s magnification while maintaining exceptional image quality, contrast, and sharpness.

Unlike traditional Barlow lenses, this advanced telecentric design ensures consistent optical performance across the entire field, making it an ideal upgrade for planetary observation, lunar viewing, and astrophotography.

With the ability to triple the effective focal length, this accessory transforms your existing eyepieces into powerful high-magnification tools—without compromising comfort or clarity.

🔍 Key Features

🚀 3x Magnification Boost – Expand Your Telescope’s Power

• Triples the effective focal length of your telescope

• Convert one eyepiece into multiple magnification options

• Ideal for:

  • 🌙 Moon observation

  • 🪐 Planetary detail (Jupiter, Saturn, Mars)

  • 🔬 Small deep-sky objects

🔬 Advanced Telecentric Optical Design

• 4-element telecentric design for superior image correction

• Maintains sharpness across the entire field of view

• Eliminates distortions common in standard Barlow lenses

• Delivers true color and high contrast

✨ Fully Multi-Coated Optics

• Fully multi-coated lenses for maximum light transmission

• Blackened lens edges reduce internal reflections and improve contrast

• Bright, crisp, and detailed views even at high magnification

👁️ Comfortable Viewing Advantage

• Retains the eye relief of longer focal length eyepieces

• More comfortable than using short focal length eyepieces at high power

• Ideal for eyeglass users and extended observation sessions

🌠 Perfect for Visual & Astrophotography Use

• Suitable for both:

  • 🔭 Visual astronomy

  • 📸 Astrophotography applications

• Enhances imaging scale without degrading quality

🛡️ Precision Engineering & Compatibility

• 1.25-inch (31.7mm) barrel – fits most telescopes and accessories

• Compatible with standard 1.25” eyepieces and diagonals

• Includes filter thread for nebula and color filters

• Durable construction with secure grip

📊 Technical Specifications

• Magnification Factor: 3x

• Barrel Size: 1.25 inch (31.7mm)

• Optical Design: 4-element telecentric system

• Coating: Fully Multi-Coated

• Length: ~100 mm

• Width: ~48 mm

• Weight: ~245–249g

• Filter Thread: Yes (1.25”)

📦 What’s in the Box

• Explore Scientific 3x TeleXtender (1.25”)

• Protective dust caps

• Storage box / case

🎯 Ideal For

• 🌙 Lunar observation (high detail)

• 🪐 Planetary observation (Jupiter, Saturn, Mars)

• 🔬 High magnification viewing

• 📸 Astrophotography imaging scale enhancement

• 🔭 Dobsonian, SCT & refractor telescopes

🚀 Why Buy from Modern Telescopes?

• 🇮🇳 India’s Largest Telescope & Astronomy Equipment Distributor

• ✅ 100% Genuine Explore Scientific Products

• 🚚 Fast Pan-India Delivery

• 🛠️ Expert Technical & Astronomy Support

• 🏆 Trusted by Observatories, Institutions & Professionals

💡 Final Verdict

The Explore Scientific 3x TeleXtender (1.25”) is a must-have premium accessory for astronomers looking to maximize magnification without sacrificing image quality. With its telecentric design, superior coatings, and versatile performance, it stands out as one of the best high-power focal extenders available in India.