Skip to content

Features

  • 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

Celestron E-Lux 40mm Eyepiece

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.

The 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.

Specifications

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)