Celestron 17mm Ultima Duo Eyepiece

17mm Focal Length.Fits Both 1.25" & 2" Focusers.42mm T-Adapter Support.Fully Multi-Coated Optics.68 Degree Field of View.Blackened Lens Edges.

Model: 93444-CELESTRON. Celestron 17mm Ultima Duo Eyepiece 1.25"/2" Get a new perspective on the Universe with Ultima Duo, Celestron's versatile new eyepieces that combine excellent optics with a built-in T-adapter for astroimaging. Enjoy impressive views with a wide 68-degree apparent field of view. Celestron's fully multi-coated optics increase light transmission and contrast, while blackened lens edges prevent internal reflections. The result is bright, pinpoint stars on a black field. A generous 20mm of eye relief and fold-down rubber eyeguard make Ultima Duo comfortable to use without removing eyeglasses.PERFECT FOR IMAGINGIf you're interested in imaging through the eyepiece, Ultima Duo makes the process quick and easy. Unlike competitors' eyepieces, you won't need to spend money on expensive adapters for your camera. The industry-standard 42 mm T-threads are integrated for a direct, secure connection to your DSLR or astronomical CCD camera. Just remove the rubber eyeguard to expose Ultima Duo's integral T-threads. Then attach your DSLR camera (with compatible T-ring) and you're ready to capture crystal clear images! Ultima Duo is ideal for imaging bright solar system objects like the rings of Saturn, craters on the Moon, and Jupiter's Great Red Spot. Imaging the Moon and planets is even easier with our Smartphone Adapter for Ultima Duo. Unlike "universal" adapters, the Celestron Smartphone Adapter is custom-fit for the Ultima