2" to 1.25" Eyepiece Adapter – Brass Compression Ring

Easily use standard 1.25" eyepieces and accessories in a 2" telescope focuser, diagonal, or visual back with this precision-machined aluminum adapter.

The adapter features a brass compression ring that securely grips your 1.25" eyepiece or accessory without a metal thumbscrew pressing directly against the barrel. The black anodized aluminum construction provides a durable, clean finish while keeping the adapter lightweight and rigid.

At just 28mm tall overall, the adapter maintains a relatively low profile. 18mm inserts into the 2" opening, leaving only 10mm above the focuser or diagonal when fully seated.

The bottom of the adapter also includes female M48 threads, allowing a standard 2" mounted filter to thread directly onto the adapter. This makes it easy to use one 2" filter with multiple 1.25" eyepieces without having to move the filter from eyepiece to eyepiece.

Features

• Converts a standard 2" eyepiece holder to 1.25"
• Brass compression ring provides secure, non-marring clamping
• M48 female filter threads on the bottom
• Accepts standard 2" mounted astronomy filters
• Black anodized aluminum construction
• Low-profile design
• Precision-machined 2" insertion barrel

Specifications

Compatibility: Designed for standard 2" telescope focusers, diagonals, and accessory holders and standard 1.25" eyepieces and accessories. The M48 female threads are compatible with most standard threaded 2" astronomical filters.