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Celestron Universal Barlow and T-Adapter – 1.25”
This Barlow and T-Adapter has three applications that can allow for improved lunar observations: as a 2x Barlow for visual use, as a prime focus T-adapter, or as a “Barlowed” T-adapter for doubled magnification and the benefit of extra inward focus travel.
Use as a Barlow
Straight of out the box this can be used as a 2x Barlow which will double the focal length of the applied lens. Constructed out of multiple high-quality optical glass elements, the Celestron Universal Barlow will allow you to enjoy double the magnification while retaining excellent image brightness. Through this Barlow lens, the image is only dimmed by approximately 3%.
Owning a 2x Barlow lens is a cost-effective way to double your eyepiece collection as it halves the focal length of each lens effectively doubling the magnification and your eyepiece collection. An additional benefit of a Barlow lens is that it will maintain your eyepiece’s eye relief while increasing magnification which makes it easier for beginner and glasses-wearing observers to view objects more comfortably.
Use as a prime focus T-Adapter
Using the T-Adapter on its own will allow for any telescope with a 1.25” barrel to transform into a telephoto lens for Prime Focus image-making. Simply unscrew the bottom section of the unit to remove the Barlow and slide the chrome barrel into the telescope’s 1.25” focuser or adapter. Lock firmly in place and attach the T-Ring (sold separately) to mount your DSLR or SLR camera body to the telescope.
Use as a “Barlowed” T-Adapter
Combine the two parts together onto your diagonal to digiscope with a 2x magnification. Alternatively, for an even higher magnification, place the Barlow between the diagonal and the telescope and view the sky with a 3x magnification whilst still maintaining image brightness.
Key Features
- Digiscoping with telescopes
- 2x and 3x magnification with Barlow lens
- 3 applications in one kit
- Improves eye relief
- Good for beginners and glasses wearers
Specifications
Weight: 65g / 2.3oz
Barrel Size: 32mm (1.25”)
External Length: 76mm (3”)
What’s in the box?
- 1x Celestron Universal Barlow and T-Adapter 1.25”
Want to learn more?
Learn Astronomy Lingo: The Essential Astronomy Glossary
FAQs
Is higher magnification always better?
Higher magnification does not always equal higher image quality. The magnification will also magnify atmospheric turbulence which may make the image appear blurry. It is best to experiment with different combinations of Barlow lens with eyepieces to find the best view for your object and current viewing conditions.
Why do I need a T-Ring too?
The T-Adapter is the mechanism that goes into the telescope, it requires a T-Ring to attach to a camera. The T-Ring is specific to the camera make, the T-Adapter is specific to the scope or telescope. Together they allow the camera to properly mount onto a telescope and take images.
Can this be used by a Fast Refractor or Newtonian telescope?
Absolutely! Some telescopes, especially “fast” refractors and most Newtonians may not have enough focus travel to allow the camera to focus with just a T-Adapter. In these instances, using a Celestron Universal Barlow & T-Adapter which will double the magnification and allow the telescope to properly focus.
What is digiscoping?
Digiscoping is where a camera is attached to a telescope or spotting scope and uses the scope as a telephoto lens. In the world of telescopes, this opens up the night sky to lunar and planetary photography.
