Congrats on the Z8, its a total beast. Tbh, if you are doing a wedding in Seattle in two weeks, you gotta think about the lighting. Seattle is basically synonymous with gray skies and dim church interiors, so that should probably dictate your choice here. Since your budget is $2400, you can actually afford the Nikon NIKKOR Z 24-70mm f/2.8 S right now. Its basically the gold standard for pros for a reason. The extra stop of light over the f4 makes a massive difference when you are trying to keep your shutter speed up during a ceremony without cranking the ISO to astronomical levels. Its scary sharp across the frame and the bokeh is way smoother than any F-mount version you used before. Serious jump in quality. That said, the Nikon NIKKOR Z 24-120mm f/4 S is arguably the best bang for your buck lens Nikon has ever made. Its light, the range is incredible for reception candids, and the close-up performance is wild. But for a wedding? I usually lean toward the 2.8 just for that peace of mind. If you go with the 24-120, you might find yourself wishing for more light once the sun goes down or the indoor lighting gets moody. Since you got the budget for the big gun, Id say grab the 24-70 2.8 S and dont look back... it really is that good.

Like someone mentioned, the 120mm reach is nice, but for a pro wedding gig, I'd stick with the 2.8. I spent a few years shooting with various zooms before landing on the Nikon NIKKOR Z 24-70mm f/2.8 S, and the difference in low light is noticeable. I remember a wedding in a converted barn where the lights were basically non-existent. Having that f/2.8 aperture was the only thing keeping my shutter speed high enough to freeze the dancing without the ISO going totally off the rails. The 24-70 S is honestly a tank. Its built way better than the older F-mount versions I used for a decade. While the Nikon NIKKOR Z 24-120mm f/4 S is a decent option if youre hiking or shooting in bright sun, the 2.8 gives you that shallow depth of field that clients usually expect for portraits. Since your budget is $2400, you can pick up the 2.8 brand new and still have a bit left over for a SanDisk 128GB Extreme PRO CFexpress Type B card, which youll definitely need for that Z8. It depends on your needs regarding weight though, because the 2.8 is significantly chunkier than the f/4. I dont mind the bulk myself, but some people find it tiring after ten hours on their feet. If you can handle the weight, the 2.8 is the way to go for that Seattle weather.

Jumping in with some technical specs. For a Seattle wedding, f/4 is a gamble in dim venues because it forces your ISO higher, which can eat into your dynamic range.

• Watch for focus hunting in low contrast.
• Be careful with corner vignetting when wide open.
• Dont ignore the weight difference for an 8-hour day. Sensor performance is great these days, but glass still dictates your base exposure. Hit me up if you want more technical data.