I’m trying to pick a 24-70mm zoom for my Nikon Z setup (mostly shooting travel and family stuff, plus some casual portraits), and I’m getting lost between the Nikon Z 24-70mm f/4 S, the Z 24-70mm f/2.8 S, and third-party options like Tamron/Sigma (with an adapter if needed). I’d love sharpness and good autofocus, but I also care about size/weight since it’ll live on the camera a lot. Budget is flexible, but I don’t want to overpay if the real-world difference is small. For a Z6/Z7-style body, which 24-70mm is actually the best overall choice and why?