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The Ultima Duo 10mm Eyepiece with T-Adapter Thread from Celestron features eight fully multicoated optical elements arranged in five groups and packaged in a rubberized aluminum barrel which fits 1.25" and 2" focusers. While fully multicoated optics increase light transmission and delver brighter images with better contrast compared to similar optics with fewer coatings, blackened lens edges reduce ambient light and image blurring. This optical design is specifically aimed at viewing and imaging of bright astronomical objects.
This eyepiece is meant to be used easily for both viewing and astrophotography. To serve both of these goals, the eyepiece has a 20 mm long eye relief with fold-down eyeguard and a T-adapter thread for your DSLR or astronomical CCD camera. When you find a perfect view and ready to take a photo, simply take off the rubber eyeguard and use the 42mm threads on top of the eyepiece to connect your camera with optional T-ring.
The Ultima Duo eyepiece is compatible with most telescopes and includes protective cups and a carrying pouch.
10mm focal length
68° apparent angular field of view
Fully multicoated optics increase light transmission and contrast
20 mm eye relief allow use with glasses
Blackened lens edges prevent stray light
For imaging bright celestial bodies
8 elements in 5 groups
Compatible with 1.25" and 2" focusers
Compatible with most telescopes without extra adapters
Can be used with planetary imagers Skyris or NexImage via a T-to-C adapter
Fold-down rubber eyeguard allows use with glasses
42 mm thread under the eyeguard allows quickly attaching DSLR or CCD with an optional T-adapter
Anodized aluminum barrel is threaded for 1.25" filters and has a safety recess
Rubberized rings allow for a non-slip grip while wearing gloves
In the Box
Celestron Ultima Duo 10mm Eyepiece with T-Adapter Thread (1.25" and 2")