This wide photo adapters threads into a C Mount thread found on many items, including many modern video and digital cameras. By using this wide photo adapter you can image more of the sky into one photo, this reduces the focal length to 60% of your instruments normal length. You may also need optional #3763 T-C ring to mount this to a telescope.
Thread: Standard 1” -32 count thread
Optional: T-C ring #3763 may be needed to attach to telescope
Weight: 2 oz