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Explore Scientific

Explore Scientific 2x Focal Extender (2") – FE02-020

Explore Scientific 2x Focal Extender (2") – FE02-020

$299.99
$299.99
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The Explore Scientific 2x Focal Extender (2") FE02-020 is a precision optical accessory that doubles the effective focal length of compatible telescopes, allowing higher magnification and more detailed views of celestial targets. Designed specifically for use with large format 2" focusers, this extender maintains excellent image quality while expanding the magnification potential of your optical system.

Using the 2x focal extender increases the focal length of your telescope by a full factor of two, making it ideal for planetary observing, lunar close-ups, and high-magnification deep-sky exploration when paired with suitable eyepieces. Its solid optical and mechanical design ensures consistent performance and reliable alignment with your telescope’s optical path.

Created for astronomers who want to extract maximum performance from their equipment, the FE02-020 combines ease of use with optical precision, expanding the versatility of your existing eyepiece set without sacrificing image quality

Features

  • Doubles the effective focal length of telescopes with a 2" focuser

  • High-precision optical design for sharp, high-contrast imaging

  • Ideal for high-magnification observing of planets, lunar features, and compact deep-sky objects

  • Maintains optical quality and collimation when used with compatible eyepieces

  • Metal barrel and housing engineered for stable, secure mounting

  • Compatible with a wide range of telescopes that accept 2" accessories

  • Enhances versatility of existing eyepiece sets

Specifications

Specification Details
Model/SKU FE02-020
Type 2x Focal Extender (2")
Magnification Increase 2×
Barrel Size 2" (50.8 mm)
Focus Compatibility 2" telescope focusers
Optical Design Precision glass elements
Construction Metal housing
Weight Approx. 0.9 lb (410 g)
Length Approx. 85 mm
Diameter Approx. 65 mm
Includes 2" focal extender unit
Intended Use Enhancing magnification and focal length
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Frequently Asked Questions

With a beginner telescope you can see a surprising amount — the craters and mountains on the Moon, the rings of Saturn, the moons of Jupiter, and star clusters like the Pleiades. As you get more comfortable, you can also spot nebulae and distant galaxies. Not sure which beginner telescope is right for you? Check out our Telescope Buying Guide.
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