HOTECH 1.25 SCA Telescope T-Adapter

1.25 SCA T-Adapter self center loads perfectly in your drawtube/visual back providing a repeatable and secure installation brings out the best imaging result from your telescope.Ideal precision prime focus T-Adapter for your astro imaging.- The SCA Technology center loads your camera to the drawtube's optical axis for best imaging result.- Eliminates drawtube slop without using the thumbscrew.- Accepts Imperfection of a drawtube.- Short profile prevents oscillation.- Damps unwanted vibration.- Accepts 1.25 filter threads.Announcing the Self-Centering Camera T-Adapter for Astrophotographers. The Self-Centering Adapter (SCA) mechanism provides repeatable and reliable connection between your telescope and the camera. The SCA T-Adapter fits any make telescope that uses 2” or 1.25” focuser or visual back. Use your existing T-Ring matches your brand of camera and thread onto the SCA T-Adapter.SCA Brings your Camera to the Closest Optical Axis in the Drawtube/Visual back for BEST Imaging ResultTo 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 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 SlopAll drawtube/visual back 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. SCA Eliminates unstable locking from thumbscrew or unified compression ringThe 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 Accepts the Imperfection of a Drawtube/Visual BackSmall imperfection inside the drawtube like dents and scratches the rubber rings fill the gaps and faithfully centers your camera in the tube. In addition even if the drawtube is slightly deformed in diameter egg-shape the rubber rings in the SCA will compensate the differences and faithfully centers your camera. Short SCA Profile Prevents OscillationShort 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 drawtube shoulder to the bottom T-Thread.SCA Damps VibrationThe all-around adjustable tightness rubber contact damps unwanted vibrations from the telescope provides you a sturdy attachment on your telescope for a stable image capture. SCA Accepts Filter Thread2” T-Adapter has built-in 2” (48mm) filter thread and 1.25” T-Adapter has built-in 1.25” filter thread. SCA T-Adapter is a dream come true for astrophotographers.

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