SVBONY • W2811C
Use 1.25″ eyepieces in your 2″ holder
A metal reducer adapter for switching between standard eyepiece sizes, with a brass compression ring to help protect the eyepiece barrel.
Fit your existing 1.25-inch eyepieces into a telescope with a 2-inch eyepiece holder using the SVBONY W2811C metal reducer adapter.
Built for a secure, practical fit
- 2″ to 1.25″ conversion: accepts standard 1.25-inch eyepiece barrels in a 2-inch holder.
- Machined, black anodised aluminium: metal construction for regular observing use.
- Brass compression ring: helps secure the eyepiece without a retaining screw pressing directly against its barrel.
- Internal anti-reflection threading: helps control unwanted reflections.
Check your setup
Insert the adapter into the 2-inch eyepiece holder, secure it using the holder’s locking mechanism, then insert your 1.25-inch eyepiece and tighten the adapter’s thumbscrew. Check insertion depth and focusing clearance in your telescope.
This is a mechanical size adapter. It does not change focal length or magnification and contains no Barlow lens. It accepts a smaller eyepiece in a larger holder; it is not the reverse 1.25-inch to 2-inch version.
Specifications
| Brand / manufacturer SKU | SVBONY / W2811C |
|---|---|
| Telescope-side fitting | 2-inch insertion barrel |
| Eyepiece-side fitting | 1.25-inch holder |
| Material / finish | Machined anodised aluminium / black |
| Eyepiece retention | Brass compression ring with thumbscrew |
In the box
One SVBONY W2811C 2-inch to 1.25-inch eyepiece adapter. Telescope and eyepieces are not included.