Baader Hyperion 5mm Eyepiece - 1.25"

The 68-degree field of view provides a more immersive and expansive view of the night sky, making it easier to locate and track celestial objects without constant head movement.

Yes, the Baader Hyperion 5mm eyepiece features interchangeable barrels, allowing it to fit into either 31.7mm (1 1/4 Inch) or 50.8mm (2 Inch) telescope focusers.

These are advanced multi-layer coatings applied to the lens surfaces designed to maximize light transmission and minimize internal reflections, resulting in brighter, sharper, and higher-contrast images.

The eyepiece is ready to use out of the box with a compatible telescope focuser. However, if you wish to adjust the eye relief or focal length further, Baader's Fine Tuning Rings are sold separately.

The 5mm focal length provides high magnification, making it ideal for detailed observation of planets (like Jupiter and Saturn), the Moon, and other small, bright deep-sky objects.

Use a soft lens brush or a dedicated microfiber lens cloth. For tougher smudges, use an optical lens cleaning solution applied to the cloth, not directly onto the lens. Always handle with care to avoid scratches.

Ensure the eyepiece is fully inserted into the focuser. Adjust your telescope's focuser to achieve sharp focus. Check for any obstructions in the focuser drawtube.

Verify that the internal baffles in your telescope are effectively blocking stray light. Ensure the eyepiece lenses are clean. Check that any external filters are properly seated.

Confirm you are using the correct barrel size (31.7mm or 50.8mm) for your focuser. Ensure the focuser's compression ring or set screw is loosened.