This Morpheus adapter is used to convert the Morpheus M43 external top-thread into an SP54 external thread, without adding any optical height! You will be able to connect to most standard camera lenses that have filter threads onto a Morpheus eyepiece. Morpheus eyepieces are renowned for afocal eyepiece projection photography and allow you to achieve exquisite planetary images. In order to connect your camera lens onto the SP54 thread, you will also need a Hyperion DT-ring that matches the threads of your lens. This adapter is ONLY suitable for Morpheus 76-degree eyepieces and is not designed to fit the Hyperion or Hyperion-Zoom collection of eyepieces, since the optical distance fits perfectly for Morpheus eyepieces.