The Kowa Adapter Ring for Astronomical Eyepieces (Grub Screw) lets a Kowa TSN-99x/880/770 series spotting scope accept standard 1.25" fitting astronomical eyepieces and adapters to help you capture the night sky! Now you take your high quality terrestrial Kowa observational tools to the front of celestial viewing. TSN-99x scope bodies have a focal length of 583mm and the TSN-880/770 bodies have a focal length of 500mm.
All Kowa spotting scopes, binoculars, or other optical products sold through a United States or Canadian authorized Kowa dealer come with a
Limited Lifetime Warranty*. This warranty gives you specific legal rights and you may have other rights which vary from state to state. Your Kowa spotting scope, binocular, or other optical product is warranted to be free of defects in material and workmanship for the lifetime of the product.
Please call Kowa office to receive an RMA (return merchandise authorization) number before shipping the product to Kowa.
Call Kowa for more information at
1-800-966-5692