- Three accessories in one
- 2x Barlow: Use during visual observing to double the magnification of 1.25” eyepiece
- Prime Focus Photography: Use the T-Adapter portion of this accessory to transform your telescope into a giant telephoto lens
- Tele-Extended Photography: Use the T-Adapter with Barlow to get double the magnification of prime focus mode
- T-threads accept camera brand specific T-Ring (sold separately)
Prime focus photography
The Celestron Universal Barlow & T-Adapter can also be used for prime focus photography, which means you use the telescope as a photographic lens. Just 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. T-threads on the top of the adapter screw into a T-Ring (sold separately) that is designed to attach to the brand-specific mounting flange of your DSLR or SLR camera.
There are some telescopes may not have enough focus travel to allow the photographic image to come into focus when used in prime focus mode. In these instances, adding the Barlow to the T-Adapter will allow the telescope to reach focus. In “Tele-Extended” mode, the Barlow doubles the focal length and f/ratio of your telescope, resulting in an image on the sensor that is twice the size of a prime focus image.