The mount depends on the following and as per your need: Alt-Azimuth mount (ALT-AZ) is a simple two-axis mount for small refractors and reflectors, is acceptable for casual observation and has a very little pre-setup time. It gives the optical tube, UP-Down and Horizontal motions. Equatorial mount (EQ) allows you to track an object by moving only one axis. This feature greatly enhances the utility of equatorial mounts. It gives the optical tube Arc motions, as to how any object moves in the actual sky. And, so it is better suited for stability during a continuous observation and also during Astrophotography techniques.