Hotech 2" SCA Self-Centering Camera Adapter
Hotech 2" SCA Self-Centering Camera Adapter Highlights
- The Hotech SCA is the Ideal precision prime focus T-adapter
- Provides 360ยบ rubber square rings contact for the most secure and reliable adaption in your focuser
- Brings your camera to the closest optical axis in the drawtube or visual back for the best results when imaging
- The Hotech SCA eliminates slop in the drawtube/visual back
- The SCA eliminates unstable locking from thumbscrew or unified compression ring
- The Hotech Self-Centering Adapter accepts the Imperfections inherent in drawtubes and/or visual backs
- The short SCA profile prevents oscillation
- Dampens vibration!
- Accepts 48mm threaded t-rings
More About the Hotech SCA Camera Adapter
SCA Brings your Camera to the Closest Optical Axis in the Drawtube/Visual back for BEST Imaging Result
To capture great images from your telescope, it is essential to position your camera firmly in and on the optical axis of your drawtube/visual back. The Hotech SCA T-Adapter center loads your camera in the drawtube/visual back with a simple threading of a compression ring, forcing the built-in rubber rings outward radially, thereby centering the camera in the drawtube/visual back for optimal installation.
SCA Eliminates Drawtube/Visual Back Slop
All draw tubes and visual backs have manufacturing tolerances. And it requires larger diameter to accept various eyepieces and adapters. When the camera adapter is inserted, the gap between the drawtube/visual back and the inserting device became a slop problem. The rubber rings in the SCA expand radially according to users own adjustment to fill the gaps. This makes your camera seats firmly in your drawtube/visual back becoming part of your telescope for a secure and repeatable installation.
The SCA Eliminates unstable Locking from a Thumbscrew or Unified Compression Ring
The optical axis is shifted when the inserting device is locked in by thumbscrew. In some cases, some poorly made unified compression ring can cause unstable tilt when locking in the drawtube due to loose tolerances between the compression ring, inner groove, and the uneven tip of the locking thumbscrew in a drawtube. The SCA T-Adapter adapts your camera without using the thumbscrew or the unified compression ring.
SCA Allows for Imperfections in a Drawtube/Visual Back
Rubber rings fill the gaps caused by small imperfections inside a draw tube or visual back and faithfully centers your camera in the tube. In addition, even if the draw tube is slightly deformed in diameter, the rubber rings in the SCA will compensate for the differences and faithfully centers your camera.
A Short Profile Prevents Oscillation
Short profile design keeps the installed camera stable from low frequency oscillation transferred from the telescope in a windy environment. The back focus of a 2" SCA T-Adapter is 19mm ( 0.75") and 1.25" SCA T-Adapter is 18mm (0.71"), measured from draw tube shoulder to the bottom T-Thread.
SCA Damps Vibration
The all-around adjustable tightness of the rubber contact dampens unwanted vibrations from the telescope and provides you with a sturdy attachment on your telescope for a stable image capture.
SCA Accepts Filter Thread
The Hotech 2โ SCA T-Adapter has built-in 2โ (48mm) filter thread, and 1.25โ T-Adapter has built-in 1.25โ filter thread.