Description

Standard electronic focusers without a clutch prevent manual focusing on Celestron SCTs. However, SCT users often need both quick manual adjustments and fine electronic control. The Oasis Focuser and its dedicated adapter solve this problem.

These adapters allow the Oasis Focuser to be mounted directly on C8, C9.25, C11, and C14 (including HD versions). Because the Oasis Focuser features a clutch mechanism and the adapter includes a specially designed knob, users can switch freely between manual focusing and electronic focusing.

This creates a complete dual-mode focusing system that is perfect for SCT astrophotography.

Two models are available:
• CSA8925 — for C8 / C9.25
• CSA1114 — for C11 / C14

CSA8925

CSA1114

Special-designed Knob

Example Installation on C14HD

The Oasis Focuser main body attaches via a clamp, making it easy to move between different telescopes while keeping this adapter fixed to your SCT.

Even when the electronic focuser body is removed, the manual knob remains functional—maintaining both appearance and usability.

Included Components

CSA8925 Components

CSA1114 Components

The focusing shaft diameter on C11/C14 comes in two sizes: 21.8 mm and 22 mm. Oasis provides two versions of the CSA1114 knob:
• CSA1114A — for 21.8 mm shaft
• CSA1114B — for 22 mm shaft

Example Installation on C14HD

Oasis Focuser on Celestron C14HD