Celestron Ultima Duo 13mm Eyepiece with T-Adapter Thread (1.25" and 2") has been discontinued, here are some related products you might like:
Celestron Ultima Duo 13mm Eyepiece with T-Adapter Thread (1.25" and 2")
Overview
Description
The Ultima Duo 13mm Eyepiece with T-Adapter Thread from Celestron features eight fully multicoated optical elements arranged in five groups and packaged in a rubberised aluminium 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.
Key Features
Optical Performance
*
- 13mm 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
Compatibility
*
- 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
Construction
*
- 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
- Anodised aluminium barrel is threaded for 1.25" filters and has a safety recess
- Rubberised rings allow for a non-slip grip while wearing gloves
Specifications
Focal Length |
13mm |
Barrel Diameter |
1.25" / 2" |
Eye Relief |
20 mm |
Lens System |
8 elements in 5 groups |
Filter Diameter |
1.25" |
Field Stop Diameter |
Not provided by manufacturer |
Apparent Field of View |
68° |
Dimensions |
Length: 3.5 - 4.7" (90 - 125 mm) Diameter: 2.4" (60 mm) |
Weight |
Not provided by manufacturer |
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Details
- Product: Celestron Ultima Duo 13mm Eyepiece with T-Adapter Thread (1.25" and 2")
- Manufacturer: Celestron
- Model: 93443
- SKU: 93443
- RM Product #: 26486