TPO 2X ED Big Barlow - 2"

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  • Regular price $58.95
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TPO 2X ED Big Barlow - 2"

The 2X ED Big Barlow - 2-Inch Barrel by Third Planet Optics:


Are you interested in an excellent quality 2-inch Barlow lens without paying the big name prices? The Third Planet Optics 2X ED Barlow is for you. This premium Barlow is made of high quality materials, including Extra Low Dispersion (ED), fully multi-coated glass for higher contrast, sharper images.

Outstanding views aren't all the TPO 2-inch Barlow has to offer. By including a 1.25-inch adapter, now virtually all of your eyepieces can have double the magnifying power without sacrificing eye relief. Just think of how much more light a 2-inch Barlow would gather instead of a 1.25-inch!

Do you want more features? Then take a closer look because the OPT 2X ED Barlow also includes brass compression rings on both the Barlow and the adapter, plus a gnarled rubber grip for secure handling.


TPO - 2X ED Barlow Lens - 2 inch Features:

  • Brass compression rings on Barlow and adapter for eyepiece security.
  • Gnarled rubber grip for handling safety.
  • High quality optics and rugged construction.


OPT Product Number: OS-B22

  • Doubles the Magnifying Power of your Eyepieces!
  • Fully Multi-Coated Glass
  • Brass Compression Rings
  • Includes a 1.25-Inch Adapter!
  • Size: 2-Inch


Additional Information

Accessory TypeBarlow
Adapters IncludedOne 1.25" Adapter with Thumbscrew
Barrel Size2"
Compression BandBrass
Free ShippingYes
Optical CoatingsFully Multi Coated
Thumb ScrewsIncludes One
Warranty2 Year Warranty

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Questions & Answers

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  • Is the barrel threaded to accept filters?

    Michael, the TPO 2x Big Barlow is threaded to accept filters. We do have the barlow in stock. Thanks, Steve

  • Does the lower lens unscrew to be used at 1.5x magnification?

    Yes, the unscrewed lens cell has an M48x0.75 2" filter thread and will thread into the bottom of 2" eyepieces. Doing this will give you approximately 1.5x magnification depending on the specific eyepiece used.

  • Is this a single element lens?

    No, this barlow uses a 2 element ED doublet to change magnification while keeping chromatic Aberration well corrected.