Neewer

Neewer 10093357 2X Barlow Lens for 1.25" Telescope

4.5 (155 reviews)

Double your telescope's magnification and connect to your DSLR with one affordable multi-coated Barlow lens.

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Overview

The Neewer 10093357 2X Barlow Lens is a straightforward way to extend the magnification range of any telescope equipped with a standard 1.25-inch focuser. By inserting the Barlow between the eyepiece and the telescope's focuser tube, you effectively double the magnification of whichever eyepiece you are using, meaning a set of three eyepieces becomes functionally equivalent to six. The multi-coated glass elements minimize reflections and light scatter, preserving contrast and brightness — a meaningful advantage when observing faint deep-sky objects or subtle planetary detail.

Beyond visual observing, the Barlow lens features an M42 thread at the camera end, enabling you to connect a DSLR or SLR body with the appropriate T-ring adapter for your camera system. This makes it a dual-purpose accessory: a magnification booster for visual use and a basic projection lens for lunar and planetary photography. The all-metal barrel ensures the lens holds alignment under the weight of a camera body and withstands repeated insertion and removal from the focuser. For beginners and intermediate astronomers looking to get more from their existing eyepiece collection, the Neewer 2X Barlow offers a practical and affordable upgrade.

Specifications

Brand
Neewer
Model
10093357
Magnification
2X
Barrel Size
1.25 inch
Lens Coating
Multi-Coated
Camera Thread
M42 (T-thread)
Material
Metal

Pros & Cons

👍 Pros

  • 2X magnification effectively doubles the usefulness of every eyepiece you own.
  • M42 thread allows direct connection to DSLR or SLR cameras for astrophotography.
  • Multi-coated optics reduce glare and light loss for brighter, clearer views.
  • All-metal construction provides solid build quality and reliable alignment.
  • Standard 1.25-inch barrel fits the majority of consumer telescopes.

👎 Cons

  • 2X is a fixed magnification factor with no adjustability.
  • No camera T-ring adapter included, so DSLR users must purchase one separately for their camera brand.
  • May introduce slight chromatic aberration at high magnifications compared to premium apochromatic Barlows.
  • Added optical element can reduce overall image brightness when used with smaller aperture telescopes.

Frequently Asked Questions

It doubles (2X) the magnification of any 1.25-inch telescope eyepiece you pair it with. For example, a 25mm eyepiece that gives 40X will deliver 80X with this Barlow inserted.
Yes. The lens has a standard M42 (T-thread) at the top, so you can connect a DSLR or SLR camera with the appropriate T-ring adapter for your camera brand.
It fits any telescope that accepts standard 1.25-inch (31.7mm) eyepieces, which covers the vast majority of consumer and intermediate telescopes.
Multi-coated means multiple layers of anti-reflective coating are applied to the glass surfaces. This reduces internal light loss and glare, producing brighter and sharper images compared to uncoated or single-coated Barlows.
The barrel is constructed entirely of metal, which provides better durability and more precise alignment than plastic alternatives.