Explore Scientific 5x Focal Extender 31.7 mm
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Explore Scientific 5x Focal Extender 31.7 mm

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Explore Scientific 5x Focal Extender 31.7 mm Product description

  1. Achromatic Lens System: The 5x focal extender features an achromatic objective, which significantly reduces chromatic aberration (color fringing) common in simpler lenses. This ensures sharper, more natural-looking images across the field of view, particularly at high magnifications.

  2. High Magnification Power: Designed to multiply the telescope's focal length by five, this extender allows for extreme magnification when paired with any 1.25" eyepiece. It transforms a standard setup into a powerful instrument for detailed observations of the Moon, planets, and tight double stars.

  3. Fully Multi-Coated Optics: All optical surfaces are fully multi-coated. This advanced coating technology minimizes light reflection and maximizes light transmission, ensuring brighter images with enhanced contrast, even in challenging viewing conditions.

  4. Robust Construction: Crafted from anodized aluminum, the extender is built for durability and includes an inner baffle to reduce stray light and optimize image contrast. Its precise machining ensures accurate optical alignment for consistent performance.

ABOUT THE EXPLORE SCIENTIFIC 5X FOCAL EXTENDER 31.7 MM

The Explore Scientific 5x Focal Extender 31.7 mm is a high-performance accessory designed to significantly increase the effective focal length of your telescope. Unlike standard Barlow lenses that typically offer 2x or 3x magnification, this 5x extender pushes your setup to its limits, making it indispensable for detailed lunar and planetary observation where high power is crucial. Its achromatic optical design ensures that images remain sharp and free from distracting color fringing, delivering superior clarity and contrast. With fully multi-coated optics, light loss is minimized, resulting in brighter views, even at extreme magnifications. This precision accessory is built to endure, ensuring a long product lifetime, especially when paired with original Explore Scientific accessories and proper care.

ABOUT EXPLORE SCIENTIFIC

Explore Scientific is a company renowned for manufacturing high-quality optical instruments for astronomy, microscopy, and other scientific fields. Founded with a passion for exploration and discovery, the brand has established a reputation for delivering products that combine innovative design with exceptional optical performance. Based in the United States, Explore Scientific is committed to providing amateur astronomers and enthusiasts with reliable, high-precision equipment that enhances their observational experiences. Their product philosophy centers on robust construction, advanced optical coatings, and user-friendly features, making astronomy accessible and rewarding.

MAIN FEATURES

  • Magnification: 5x for increased focal length.

  • Barrel Diameter: Standard 31.7 mm (1.25") for wide compatibility with most telescope focusers and diagonals.

  • Optical Design: Achromatic design for reduced chromatic aberration and improved image quality.

  • Coating: Fully multi-coated optics to maximize light transmission and contrast.

  • Construction: Durable metal construction ensures longevity and precise optical alignment.

  • Compatibility: Ideal for planetary observation, lunar viewing, and high-magnification deep-sky astrophotography with 1.25" eyepieces.

IN THE BOX

  • Explore Scientific 5x Focal Extender 31.7 mm

  • Dust caps

General properties

Manufacturer Explore Scientific
Telescope series Explore Scientific Eyepieces
Made in -
Warranty 5 years
SKU 0218770

Physical properties

Lens coating -
Weight. 300.00 g
Color Black

Special features

Accessories for Telescopes

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