The Latest, From OPT
Get alerts with our best new deals and updates from our blog and podcast, right into your inbox.
The Telescope Authority
SHOP ALL Telescopes
SHOP ALL Cameras
SHOP ALL Mounts
SHOP ALL Eyepieces
OPTICAL INNOVATION WITH TELE VUE
SHOP ALL Telescope Filters
SHOP ALL Accessories
SHOP ALL Used
SEE NEWEST PODCAST
Your wishlist has been temporarily saved. Please Log in to save it permanently.
Adapter: Atik EFW2 to M54 Threaded Extension, 22.5 mm in length.
Sales, Podcast and New products right into your inbox