If you are looking for a lightweight, fast guidescope, consider the Orion ShortTube 80 OTA. It will attach easily to your larger primary telescope tube assembly with the proper rings and dovetail, and will accept your digital SLR, small CCD camera, or a stand-alone autoguider. Add your favorite telescope eyepieces, correct-image or mirror diagonal, and finder scope or reflex sight (all sold separately) and you'll have a high-functioning instrument customized for any adventure!

The ShortTube 80 Refractor Telescope OTA measures 15" in length and its fixed aluminum dew shield extends 3-1/4" out from the objective lens, preventing dew formation and blocking off-axis glare. The eyepiece holding collar on the focuser drawtube has 2 thumbscrews to ensure lockdown of your guide camera or diagonal. The end of the collar is even threaded with male T2 threads, allowing threaded attachment of a DSLR directly to the focuser (with proper T-ring) for photography.

• Excels for use as a guide scope or wide-field observations with its compact, fast f/5 design
• Multi-coated 80 mm aperture with 400 mm focal length achromatic optics are housed in an all-metal tube
• Sold as optical tube assembly (OTA) only, without accessories