Crafted to deliver crystal clear imagery full of contrast, the telescopes in our AR Doublet Series will reveal the universe’s breathtaking sights with rich detail. Available in three apertures ranging from a highly portable 102mm to a far-reaching 152mm, these achromatic refractors have superior optics that produce stunning views of countless celestial treasures.

  To connect you with the cosmos, the doublet telescopes in this series use a pairing of a crown glass lens and a flint glass lens separated by a cushion of air to minimize chromatic aberrations. To further guarantee high-quality imagery, all optical glass is fully multi-coated.

  Designed to handle the rigors of public star parties and educational outreach, the AR Series telescopes come with heavy-duty, high-quality components, including a 2" dual-speed focuser, a one-piece 2" diagonal with 99% dielectric coatings, an 8 X 50 non-illuminated straight-thru finderscope and quick release bracket, and a cradle ring assembly with Vixen-style dovetail mount. Each model also offers a three-point collimation cell that allows for pinpoint adjustments of the objective lens for precision performance. 

  Available in 2x, 3x and 5x in a 1.25” barrel and a 2x and 3x in a 2” barrel, our focal extenders add versatility to your eyepiece line-up by allowing each eyepiece to perform at two powers.
  For example, if your particular eyepiece/telescope combination results in a 50x power, adding a 2x focal extender will change that to a 100x power.
  To guarantee superior image quality, our focal extenders use multiple lens elements that are made of high-quality glass and fully multi-coated with EMD coatings to reduce chromatic and spherical aberrations.

  It takes more than high-end optics to truly connect with the universe. Our versatile and durable Twilight Series mounts are designed to give your telescopes the stable foundations they need to gracefully navigate the sky.

  The Twilight I and Twilight II are both alt-azimuth mounts that can smoothly move your telescope and then firmly lock it into position to avoid frustrating slippage.

Perfect for small to mid-size telescopes, the Twilight I will support up to 18 pounds and features slow-motion controls on both axes that facilitate fine adjustments and easy object tracking. It also has an adjustable fork arm that will allow you to angle the head mount enough for some telescopes to point at the zenith.

  Ideally suited for star parties and outreach, the Twilight II mount can accommodate two telescopes at once and hold up to 60 pounds. The movement of the heavy-duty mount is controlled by large chrome dials that are simple to manipulate even when you have on gloves. It also comes with an 8-inch pier extension to accommodate larger telescopes and provide a more comfortable viewing experience.

  Both the Twilight I and II mounts come with chrome-plated steel tripods that offer a wide footprint and adjustable leg heights. To minimize vibrations, the legs are locked in place by a stabilizing plate that doubles as a convenient accessory tray.

Your telescope is much more than an observation aid. It is your personal pathway to the stars, and protecting it while it is in storage or transit should be a priority.