Orion 10mm Kellner Eyepiece (1.25" Size)
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The Orion 10mm Kellner Eyepiece (1.25" Size) is a high-quality eyepiece designed for astronomical observing and terrestrial use. Here are some key features and specifications:
Design and Construction:
- The Orion 10mm Kellner Eyepiece is a Kellner design, which is a type of refractor eyepiece that offers a wide field of view and good correction for chromatic aberration.
- The eyepiece has a 1.25" diameter barrel, making it compatible with most telescopes and accessories.
- The eyepiece is made of high-quality glass and metal materials, ensuring durability and resistance to environmental factors.
Optical Specifications:
- Eye relief: 10mm (0.4 inches)
- Field of view: 42° (apparent)
- Magnification: 123x (at 80mm aperture)
- Focal length: 10mm
- Effective focal length: 10mm (due to the telescope's optics)
- Aperture: N/A (since it's an eyepiece)