The Celestron 48 mm T-Adapter is the accessory of choice if you’d like to attach your full-frame DSLR or astronomical camera to a Celestron EdgeHD optical tube. With DSLR CCD chips getting larger, Celestron created the 48 mm T-Adapter to reduce vignetting and provide a larger light path to your camera’s sensor, producing exceptional astrophotos.
The standard T-Adapter for EdgeHD 9.25-inch, 11-inch, and 14-inch telescopes come with a 42 mm T-Thread for a 42 mm T-Ring. The smaller 42 mm T-Adapter truncates the light cone coming from the back of the EdgeHD optical tubes, which creates vignetting in the corners of full-frame imaging sensors.
This 48 mm T-Adapter has a larger T-thread opening, allowing the unhindered light to illuminate the entire sensor, optimizing your full-frame sensor’s capabilities. Below, you will find the difference between the 42 mm and the 48 mm T-Rings to give you an idea of the space the 42 mm and 48 mm T-Threads on the T-Adapter will provide.
T-Rings Threads: M48 x 0.75 (NOTE: This adapter will not work with M42 x0.75 T-Rings).
Flange distance: 91 mm.
Outside diameter: 72 mm.
Note: 2nd Image shows usage only. Telescope and camera are not included.
Celestron EdgeHD 9.25"/11"/14"
Attaches directly to the rear cell of the larger Edge optical tubes.
Produces better illumination for today's larger full-frame imaging sensors, all the way to the corners.
Reduces vignetting–darkening around the edges of the image sensor–by providing unobstructed light to the camera.
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