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- 40mm Kellner eyepiece designed for 2” focusers
- 3-element lens design with fully multi-coated optics
- Wide 56° apparent field of view allows you to view larger celestial objects
- Long eye relief (36mm) for comfortable viewing
- Threaded to accept most 2” filters
Get more light to your eye and enjoy the low-power, wide-field views of Celestron’s E-lux 2” eyepiece. Designed to be used with any telescope with a 2” focuser, the Celestron E-lux eyepiece is a 3-element, fully multi-coated Kellner design with a 56º apparent field of view. The 40mm E-lux eyepiece's very low power is perfect for those times when you need all the light-gathering your telescope can offer to see faint deep-sky objects.
This 40mm 2" E-lux eyepiece is offered a la carte, but it is also included in the 2” Eyepiece and Filter Kit. If you are looking for multiple Kellner eyepieces, filters, and a Barlow, we recommend the 2” Eyepiece and Filter Kit.
Body
The 40mm E-Lux eyepiece has a main housing that is machined from high grade aluminum with a black anodized outer surface. The internal surface of the mounting barrel has been machined with light dispersion threads that are painted matte black, to cut down on internal reflections for a clear viewing experience.
Viewing through the E-lux eyepiece is comfortable for both eyeglass wearers and non-eyeglass wearers alike, thanks to the rubber eyecups and long eye relief of 36mm.
| Barrel Size (DIA): | 50.8mm (2") |
| Focal Length: | 40mm (1.57") |
| Apparent Field of View: | 56° |
| Optical Design: | Kellner |
| Number of Lens Elements: | 3 |
| Number of Lens Groups: | 2 |
| Optical Coatings: | Fully multi-coated |
| Eye Relief: | 36mm (1.42") |
| Parfocal Eyepieces: | No |
| Filter Threads: | 50.8mm (2.0") |
| Eye Guard: | Yes, rubber, fold-down |
| Weight: | 12.5 oz (356 g) |
| Dimensions: | 125.20mm x 55.9mm DIA (4.93" x 2.20" DIA) |