Starlight Instruments 2.0" Adapter for Vixen ED103

This adapter serves as the physical connection between the optical tube of a Vixen ED103 refractor and a 2.0" Starlight Instruments Feather Touch focuser. It allows you to remove the telescope's original stock focuser and replace it with a high-precision, heavy-duty Starlight Instruments model.

This adapter is designed to work with Starlight Instruments' 2.0" focusers, such as the Feather Touch FTF20xx series. It provides the correct threading and spacing to securely mount these focusers onto the Vixen ED103 optical tube.

Upgrading to a Feather Touch focuser via this adapter provides significant benefits for astrophotography. It offers superior load-bearing capacity for heavy cameras, eliminates image shift, and provides ultra-fine, dual-speed focusing control for achieving perfectly sharp stars. The stock focuser may not offer the same level of rigidity or precision.

Yes. While the adapter itself does not focus, it enables the use of a Feather Touch focuser with 10:1 fine-focus control. This level of precision is crucial for high-magnification planetary viewing of objects like Jupiter and Saturn, where achieving critical focus with a standard focuser can be difficult.

Yes, for serious deep-sky imaging with a heavy setup, this adapter is a fundamental part of the upgrade. It creates a solid, non-flexing foundation for a robust focuser that can support the weight of a DSLR or dedicated astronomy camera, filter wheel, and guider without tilting or sagging during a long exposure on the Orion Nebula (M42).

Installation is typically straightforward for those comfortable with their equipment. It generally involves unthreading the entire stock focuser assembly from the rear of the optical tube and carefully threading this adapter in its place. Once the adapter is secure, the new Starlight Instruments focuser can be installed onto it.