Looking for a high quality 0.965" star diagonal for your vintage refractor, SCT, or finder?
High Quality 0.965" star diagonal
- Prism diagonal
- NOS made in Japan
- All metal and glass construction (excluding end caps)
- The interior of both barrels are and the body are blackened
- Both barrels unscrew from the body
- The back of the body is held on with screws, allowing access the interior for collimation, cleaning, etc.
I am not sure but this probably was sourced form Nihon Sieko, a well respected maker of telescope parts in the final half or so of the last century. They supplied Unitron with many parts.
Note this is a prism diagonal. Prism diagonals excel with longer focus telescopes. It was possibly made before dialectric diagonals were common.
I have been involved in amateur astronomy for over 25 years. I started collecting and trading vintage scopes back then. This diagonal is one of the best I have seen in the 0.965" size. Possibly one from the highest end like Takashashi or Goto might better it.
Filed under: Eyepieces & Accessories