Celestron Universal T-Adapter and Barlow Lens (1.25)

This versatile 1.25" accessory offers three distinct applications. It can be used as a 2X Barlow for visual observing, as a prime focus T-adapter, or as a "Barlowed" T-adapter to double the magnification and provide additional inward focus travel.

The Universal Barlow and T-Adapter can be used as a 2X Barlow right out of the box. Simply insert any 1.25" eyepiece into the chamber, and you'll enjoy double the magnification while retaining the full eye relief of the inserted eyepiece.

In addition, the Celestron Universal Barlow and T-Adapter can be used for prime focus photography, allowing you to utilize your telescope as a high-powered photographic lens. To do this, unscrew the bottom section of the unit to remove the Barlow, then slide the chrome barrel into the telescope's 1.25" focuser or adapter and lock it firmly in place with the focuser or adapter thumbscrew. The T-threads on the top of the adapter screw into a T-Ring (sold separately), which is designed to attach to the brand-specific mounting flange of your DSLR or SLR camera.

It's important to note that some telescopes, particularly "fast" refractors and Newtonians, may not have enough focus travel to allow the photographic image to come to focus when used in prime focus mode. In these cases, adding the Barlow to the T-Adapter will enable the telescope to reach focus.

When used in "Tele-Extended" mode, the Barlow doubles the focal length and f/ratio of your telescope, resulting in an image on the sensor or film plane that is twice the size of a prime focus image. Prime focus and tele-extended photography are popular for short-exposure images of both terrestrial and celestial objects, such as the Moon.

Package Dimensions: 9.652 cm (L) x 5.334 cm (W) x 4.826 cm (H) Product Type: Camera Lenses Package Quantity: 1 Country of Origin: China

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