Explore Scientific 62° 20mm Waterproof Eyepiece - 1.25"

The eyepiece is sealed and argon-purged, which prevents moisture from getting inside. This completely stops internal fogging on humid nights, a common problem with unsealed eyepieces, ensuring your view stays clear even when dew is forming on your telescope.

A flat-field design corrects optical errors that can make stars near the edge of the view appear stretched or out of focus. When viewing a wide object like the Pleiades (M45), this means all the stars across the cluster will appear as sharp, distinct points, providing a more immersive and detailed image from edge to edge.

Yes, it's an excellent choice. The eyepiece's high-contrast optics create a darker sky background, making it easier to see faint, diffuse objects like the Whirlpool Galaxy (M51). The description also highlights its suitability for averted vision, a key technique for detecting subtle details in faint galaxies.

Being near-parfocal means it requires very little, if any, refocusing when you swap it with other eyepieces in the same series. This is a significant convenience, especially when tracking objects manually, as it lets you change magnification quickly without losing focus on your target.

High contrast is crucial for separating faint objects from the background sky. The advanced multi-coatings on this eyepiece maximize light transmission and suppress internal reflections, resulting in a darker background that makes faint nebulosity in objects like the Orion Nebula (M42) or the outer arms of galaxies stand out more clearly.

Yes. The 1.25" barrel is threaded to accept standard 1.25" astronomy filters, such as light pollution, nebula, or color filters. This allows you to enhance your views of specific celestial objects by threading a filter directly onto the bottom of the eyepiece.