Tele Vue Plossl 25mm 1.25 inch Eyepiece

The Tele Vue Plossl 25mm 1.25" eyepiece is a high-quality, general-purpose astronomical eyepiece designed for planetary, lunar, and deep-sky observation. With a focal length of 25mm and a 50° apparent field of view, it delivers crisp, contrast-rich images. The Plossl design with 4 elements in 2 groups ensures excellent correction of chromatic aberration and low distortion. Multi-coated optics and blackened lens edges maximize light transmission and reduce internal reflections. The 18mm eye relief provides comfortable viewing, and the rubber eyecup enhances user comfort. The anodized aluminum housing is durable and lightweight. This eyepiece is part of the Tele Vue Plossl parfocal series, allowing seamless switching between focal lengths without refocusing.

Advantages

Superior optical performance with multi-coated lenses and blackened edges for high contrast. Comfortable 18mm eye relief and rubber eyecup for extended viewing sessions. Parfocal design within the series enables quick eyepiece changes. Durable anodized aluminum construction ensures long-lasting use. Versatile for a wide range of astronomical targets.

Suitable for

• Planetary observation
• Lunar observation
• Deep-sky observation
• General purpose astronomy

Key specifications

• Focal Length: 25 mm
• Barrel Size: 1.25" (31.75 mm)
• Apparent Field of View: 50°
• Eye Relief: 18 mm
• Optical Design: Plossl
• Number of Lens Elements: 4
• Number of Lens Groups: 2
• Optical Coatings: Multi-coated
• Filter Threads: Yes, 1.25"
• Blackened Lens Edges: Yes
• Rubber Eyecup: Yes
• Parfocal Series: Yes (within Tele Vue Plossl series)
• Housing Material: Anodized Aluminum
• Field Stop Diameter: 21.5 mm
• Distortion: Low
• Chromatic Aberration: Well-corrected
• Series Name: Tele Vue Plossl
• Application: General purpose astronomical observation

Recommendations

For best results, pair this eyepiece with telescopes of focal ratio f/5 or slower. It is an excellent choice for both beginners and experienced astronomers seeking reliable, high-contrast views.