Foldable rubber eyecup with M43 metal thread.
Threaded connection ensures a perfect, tight fit. Silicone rubber material ensures no aging issues or brittleness and a nice comfortable feel.
Fits all Baader eyepieces with an M43 photo / video thread including Morpheus, Hyperion fixed focal length eyepieces, Hyperion Zoom and Hyperion Aspheric.
Included with Morpheus eyepieces sold since early 2018.
With the optional M43 extension # 2954250 (also included with the Morpheus eyepieces since early 2018), the eye rest can be increased by 7.5mm.