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Explore Scientific 5x Barlow Focal Extender, 1.25" Barrel, 4 Elements

SKU: ESFE05125 MFR: FE05-125
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Key Features

  • Boost your telescope's magnification 5x with this Explore Scientific Barlow lens!
  • Enjoy sharp, clear views with the 4-element optical design of this 1.25" Barlow.
  • Perfect for detailed lunar & planetary observation, this Barlow extender enhances details.
  • Achieve higher power without sacrificing eye relief using this premium Barlow lens.
  • This Explore Scientific 5x Barlow focal extender is lightweight and easy to transport.
  • Thread your favorite astrophotography camera to capture stunning, magnified images!
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Special Order?Estimated to Ship: 09/10/2025
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Shopper : Why Did You Choose This?TIMOTHY S : Love the quality of my Explore Scientific 2x.

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Explore Scientific FE05-125 Specifications

  • Barrel Size

    1.25" / 3.17cm

  • Magnification

    5x

  • No of elements

    4

  • Clear lens aperture

    0.30" / 7.6mm

  • Dimensions (L x W)

    96 x 45mm / 3.77 x 1.77"

  • Weight

    260 g/ 9.17 oz

  • UPC Code

    812257010387

About Explore Scientific FE05-125

Become an explorer of the cosmos with the Explore Scientific 5x Barlow Focal Extender. This high-quality optical accessory, featuring a 1.25" barrel and 4 elements, is designed to enhance your viewing and imaging experience by extending the effective focal length of the lens it is paired with. This innovative product offers increased magnification for both visual and imaging applications, making it a versatile addition to your telescope or microscope setup.

Unlike standard Barlow or tele-negative lenses, the Explore Scientific Focal Extender maintains consistent magnification regardless of its placement in the optical chain. This means whether you place it in front of your diagonal or behind it, you're guaranteed to achieve the promised 5x magnification. This user-friendly feature eliminates the guesswork and variability often associated with traditional Barlow lenses, where magnification can change based on lens placement.

Furthermore, the Explore Scientific Focal Extender is particularly beneficial for imaging and astro-photography. You can introduce accessories like a flip mirror or filter wheel between the Focal Extender and a CCD camera without worrying about altering the magnification. This is due to the extender's unique design, which ensures the magnification remains constant, even if the distance to the focused image increases.

In essence, the Explore Scientific 5x Barlow Focal Extender is a durable, reliable tool that offers consistent, high magnification for both visual observations and imaging applications. Whether you're a seasoned astronomer or a budding stargazer, this product is sure to enhance your exploration of the universe.

Explore Scientific FE05-125 Features

  • More Magnification Choices without Sacrificing Eye Relief: A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magnification of any eyepiece with the same barrel size that you already own
  • Optimized Optical Design: Explore Focal Extenders are optimized through each design, fabrication and testing process to produce high contrast, high resolution images
  • Durable Coatings & Finishing Touches: Each of the four elements in your Explore Scientific Focal Extender is fully multi-coated with EMD enhanced coatings, resulting in bright, sharp images; and every element has blackened edges to reduce internal reflections and increase contrast
  • The insert barrel of each extender is double-tapered to allow smooth insertion to and removal from a telescope's eyepiece holder, focuser or diagonal, however dimension of the taper helps prevent the focal extender from falling out of telescope should the set-screw holding it in place become loose

Key Features

  • Boost your telescope's magnification 5x with this Explore Scientific Barlow lens!
  • Enjoy sharp, clear views with the 4-element optical design of this 1.25" Barlow.
  • Perfect for detailed lunar & planetary observation, this Barlow extender enhances details.
  • Achieve higher power without sacrificing eye relief using this premium Barlow lens.
  • This Explore Scientific 5x Barlow focal extender is lightweight and easy to transport.
  • Thread your favorite astrophotography camera to capture stunning, magnified images!

What's in the box:

  • Explore Scientific 5x Barlow Focal Extender
  • Dust Plug
  • End Caps
  • Explore Scientific 5 Years Warranty