Celestron Ultima Edge 15mm Flat Field Eyepiece produces bright and clear views with crisp and sharp resolution across the wide 65° field of view—even at the extreme edges. The eyepiece's focal length produces a medium magnification that strikes the delicate balance between being able to see details without the appearance of distracting vibrations that can ruin a view. This Ultima Edge has a 1.25" barrel that makes it compatible with popular diagonals, Barlows, and visual backs with standard threads for filters. This version is parfocal with the 10mm and 18mm models in the Ultima Edge series, requiring little or no refocusing when changing between them. A textured collar makes inserting and removing the eyepiece easy, and the combination of comfortable 16mm eye relief and fold-down rubber eyecup make it comfortable to use with or without eyewear.
Features:
15mm parfocal Ultra Flat Field eyepiece designed for 1.25” focusers
Incredibly crisp views from the centre to the edge of the field
Fully multi-coated, 8-element lens design for excellent light transmission
Wide 65° apparent field of view allows you to see more of the night sky
Generous 16mm eye relief and fold-down rubber eyeguard for comfortable viewing with or without eyeglasses
Moulded rubber grip ring for non-slip handling
Specifications:
Barrel Size Diameter: 1.25" (31.75mm)
Focal Length: 15mm (.60")
Field Stop Diameter: 19.6mm (.77")
Apparent Field of View: 65°
Optical Design: Proprietary
Number of Lens Elements: 8
Number of Lens Groups: 5
Optical Coatings: Fully Multi-Coated
Eye Relief: 16mm (.63")
Parfocal: Yes
Filter Threads: 1.25" (M28.5X0.6)
Eye Guard: Yes- roll up
Body Material: Aluminum
Weight:: 147 g
Dimensions: 70mm x 45mm x 45mm (2.75" x 1.77" x 1.77")
Kit Contents: Celestron Ultima Edge 15mm Flat Field Eyepiece (1.25 Inch) Limited 2-Year Warranty
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