Sky-Watcher 2″ 28mm LET Telescope Eyepiece
The Sky-Watcher LET 28mm is a 2-inch long-eye-relief (LET) eyepiece featuring a modified Kellner (3-element) optical design. It delivers a comfortable 20mm of eye relief, making it highly accessible and easy to use even for observers wearing glasses.
The Sky-Watcher LET 28mm eyepiece is compatible with any telescope that features a standard 2-inch (50.8mm) focuser or a 2-inch adapter. It cannot be used directly in smaller 1.25-inch focusers without a specific hybrid diagonal.
Key Features
Focal Length: 28mm
Barrel Size: 2-inch (50.8mm) with internal threading for standard astronomy filters
Apparent Field of View (AFOV): 56°
Optical Coatings: Fully multi-coated anti-reflective optics to maximize light transmission and contrast
Eyecups: Twist-up or fold-down rubber eyecups to block stray peripheral light
Eye Relief: 20mm.
Performance & Usage
Optical Quality: The fully multi-coated optics provide bright, crisp images with good contrast and minimal distortion, making it an excellent “finder” or low-power overview eyepiece.
Telescope Suitability: According to community consensus on forums like Cloudy Nights and Stargazers Lounge, this eyepiece performs best on longer focal length telescopes (e.g., f/10 or slower).
Specifications: Weighs approximately 274g and utilizes internal edge darkening to suppress stray reflections
The eyepiece is in excellent cosmetic condition, please see photos provided.
Optically clean & clear.
Fully Working.
Any questions, please ask.
International buyers are welcome.
If you have any problems with the delivery or the item, please let me know so I can resolve it!
All deliveries will be Tracked and Signed-For, I also pack all items to high standards.
Please buy with confidence and check out my other items.
Thanks for looking.
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