What is called “The mount” is the combination of both tripod legs or pier section and the mount head mechanism section that is comprised by 2 or more axes and has the purpose of allowing the movement of a telescope on a steady structure to frame or spot targets on the field of view of an eyepiece or camera.
The types of telescopes are basically 3, refractors, reflectors, and compound telescopes. Refractor telescopes are comprised by lenses, reflectors have mirrors and compound have both. There is no optical design that is perfect, so each design is more suitable for the specific astronomical subjects that are going to be observed, photographed, or studied.
Astro-Mirrorless digital cameras feature increased 4X sensitivity for deep red nebulae structures, a lighter, more compact body than DSLR and cooled cameras, easy camera control and focus procedure, short body flange back focus, excellent sensor illumination with Ultra-Fast optics and built-in WIFI for the best Video-Astronomy experience with Smartphones and Tablets.
These settings are recommended for long exposure photography of deep space objects. The same settings are suitable for Nightscapes or widefield shots of Milky way using lenses and stationary tripods or motorized mounts and pictures of nebulae and galaxies using telescopes and motorized mounts.
A DSLR or Mirrorless Camera modification for Astrophotography consist of the Hydrogen Alpha wavelength bandpass transmission increase at 656nm emission line and the Sulfur II wavelenght transmission increase at both 671.7nm and 673nm emission lines. The original UV/IR Blocking filter present on stock DSLR or Mirrorless Cameras only allows over 25% transmission of H-alpha emission line and over 15% of Sulfur II emission lines. An Astro-Converted DSLR or Mirrorless Camera is about 4 and 6 times (H-alpha and Sulfur II respectively) more sensitive to the deep reddish nebulae structure tones