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I was using a basic canon 1000d and a 50mm (nifty fifty) lens; the tripod is a fairly cheap Benro number, but the real magic is the bit between the tripod and the camera, and it’s called an astrotrac - basically a pair of aluminium arms hinged together at one end, and with a very precise threaded rod running between the other ends which rotates slowly to drive the arms apart and gradually turn the camera on top at precisely the right rate to counteract the spinning of the earth.
Like in the photo here (not mine). See how the astrotrac is angled so that it’s axis of rotation points up to the north celestial pole - and that side arm holds a little scope that you use for fine alignment (and for swearing at when it keeps falling out of its bracket)
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Ludd
Whats your setup @ludd?