Thanks a lot for the valuable tips.
One more thing that I am concerned is whether to get a fixed focal lens or a zoom lens.
I know that it’s recommended to use a wide angle fixed focal lens (i.e, 20mm f1.8 ), but at the same time if a zoom lens is used it is advised to keep the same focal length for the whole set of images.
I wonder if a fixed lens would yield better results than a zoom lens or it is only a matter of preference.