The Explore Scientific AR127 Air-Spaced Doublet, a durable and high-quality refractor that has been in the company's assortment for over a decade and continues to be in demand for the service of educators and enthusiasts around the world. When it comes to viewing the moon and planets few will argue that a precision refractor is the best instrument for the job, however, it does often surprise even seasoned astronomers on how stunning deep-sky objects such as nebulae and galaxies appear through the eyepiece of this 5-inch f/6.5 telescope.
"...Saturn was crisp with good detail. Next I checked out the Ring Nebula and Andromeda. This was my first time seeing the ring. Andromeda was impressive with the 25mm that came with the scope..."
-Robert Wise
But precision optics require a sturdy mount and tripod to eliminate vibrations, as well as high-quality eyepieces, to properly deliver its high-resolution images to the eye, so the team at Explore Scientific have selected eyepieces from the 52º Series Waterproof line, and a 2X Focal Extender to give a broad range of magnifications, and the TwiLight II Altazimuth Mount on the Explore Scientific Heavy-Duty Tripod.
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Refractor Specifications:
| Focal Length | 826mm |
| Focal Ratio | f/6.5 |
| Limiting Magnitude | 13 |
| Resolution | .9 arcsec |
| Tube Length w/ Dew Shield | 34"; 863mm |
| Diameter | 130mm |
| Weight | 15.6lb; 7.1kg |