Image of VEGA is taken
with Takahashi TSA-102(F/8) using a Canon SXi DSLR.
Stack of 4 x 5
min exposures without sharpening or noise reduction.
* Note the
enlarged star at the right edge of the photo. The star remains
SCA Brings your Camera to the Closest
Optical Axis in the Drawtube/Visual back for BEST Imaging Result
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 Slop
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 ring
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
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
Short SCA 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 drawtube shoulder to the bottom T-Thread.
SCA Damps Vibration
The 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.
The 2" Field Flattener Accepts Filter Thread
SCA Field Flattener has built-in
standard 2”/48mm (M48-P0.75) filter thread. T-ring thread accepts all
kinds of 35mm cameras.
It is yet another dream come true for