>>4097198The guided exposures are mine not the OP's (Is it possible to see which posts are from which users on here?)
For my widefield (up to 135mm, wide for deep sky astro) shots I use the Skywatcher Az GTi mount with equatorial mode firmware installed (plus a counterweight kit and equatorial wedge for easier polar alignment). I got this mount because I wanted to use my astro camera (currently mounted to the larger scope in the back) as well as my dslr with it so wanted goto capability for easy framing of targets. With my ZWO asiair (connected to the mount via wifi) I can guide with it using the small guidescope on top of the 3D printed mounting bracket for my Samyang 135mm F2.0.
Now, for staring out with longer exposure astrophotography you don't need everything I've got. You could start out with something like the Skywatcher star adventurer. That is a more simple and conventional star tracker. You need to find the targets yourself and then it will track (unguided) in right ascension. The star adventurer also has an auto guider port so you can add a guidescope and guide in right ascension with the aid of a laptop or small computer such as the asiair or stellarmate. For simple unguided tracking you can use an intervalometer to program a series of exposures.