I have owned a D750 since the camera first came out in 2014. Fantastic camera. I personally put over 120,000 clicks on it and seriously abused it. It took the abuse and finally after 10 years and all those clicks I'm trading it in on another used D750! I also own a D600 and a D850. The D850 is a wonderful camera but very heavy compared to the D750. I'm a wedding shooter and shooting with the D850 for hours like I do is very hard on the arms and wrists and hard on my hips and back when I carry it on my belt holster. And I shoot the D850 at 25 MPX. I don't need the higher resolution and I sure don't need the big files. 20 some mpx is a very good res level. The image quality of the D750 is fantastic. I've used it in low light quite a bit. I really enjoy night photography. Great camera. As for APS C cameras, I've taken a new look at them and as far as I can tell their only advantage is that they weigh a lot less. They are better than cell phones but I have no interest in going downscale on my images. Sensor size matters. The negatives of the D750 won't matter for the kind of photography you're doing, but here they are. Incredibly small buffer so when you use burst mode it won't take many photos before it fills up and you have to wait for it to clear. Occasionally in low light I need to light up my subject with a flashlight to get focus. The AF system works on contrast so you need at least a little light to get contrast. That's all I can think of. That's why I bought another one :)

Thanks. Good reference.

Someone else in this thread pointed out that once sensors reached 24 MPX that they hit a sweet spot of resolution. I have certainly felt that way which is why I shoot my new D850 at 25 MPX. Image quality does not seem to have improved in the last decade, nor has dynamic range. All the improvements are in other areas - frame rates per second, metering, all important AF, and other similar things. So it's not surprising to me that DSLRs of the last decade are still high on the list. New mirrorless cameras are pricey. The old cameras were extremely well built. Why spend money you don't have to spend? If I really needed better AF, instead of just lusting for it ;), or some other aspect of the new cameras, then maybe. But still, you have to learn a new camera and you have to spend a lot of money.

Thanks for the research. It's very interesting and I'm glad to see the D750 is still so popular. I seriously considered buying a 2nd D850 as it's much more advanced than the D750 and pretty inexpensive at this point but I value the lower weight of the D750 for travel so as I already have one D850, going to stick with the D750 for the 2nd body.

As for vision - yes, at age 72, have my share of issues but it wasn't vision that was the problem. It was reading too fast. My photography mentor recently bought a used D3. Haven't heard from him yet how he likes it. But the D3X seems to be quite different than the D3. Interesting that they kept the same D3 designation for it.

Good stuff. Thanks.

Sounds like a Frankenstein experiment! The D57850iii? I don't own a D500 but if you're going to be taking action photos from a distance, you might want the extra reach a crop sensor gives you. The D750, as you are probably well aware, has a very small buffer. So shooting action with it can be problematic as you can't use burst mode very much.

Couldn't agree more and yes, have already ordered the lightly used D750. Do I wish it was a D850? Mixed so I'll save the money. Hard to beat 2,800 clicks on a used D750

Thanks for your very detailed reply based on your considerable experience. But I see it differently. The D3 is a beast. So yeah, picking up a D750 after using it, it would feel small and cheap. But Nikon put carbon fiber in the D750 to lighten the weight. Wielding a D3 in a wedding, boy, what a workout. So I and my shoulders really appreciate Nikon's efforts to make the D750 a little lighter. As far as I can tell it has the lowest weight in the Nikon full frame lineup. That's an attraction to me.

As for build, I bought the camera new in 2014. I have shot something like 60 weddings with it, banging it through crowds, and I've traveled around the world with it. Had an ocean wave hit me in a sea cave with the camera hanging on my hip and getting totally submerged in salt water. In another sea cave the bag it was in washed overboard when we capsized. We were able to retrieve it but the bag was compromised. More salt water. And walking through a stream under a waterfall I tripped on rocks and the camera went completely underwater.

After all this and 120,000 clicks the camera finally needed repair. So if it's a toy, it's one of the best built toys ever.

I have a second shooter that has a D810. I process his photos. The only difference in the output is all those extra megapixels create more noise and take longer to load. Thanks but no thanks.

The flagship Nikons like the D3 typically have faster shutter speeds and frame rates per second. Very important if you shoot sports or high action. I don't. The D750 goes to 1/4000 of a sec. I can literally count on one hand the number of times that I bumped up against that as a problem. And if the build is even more durable, and I'm sure it is, it's overkill for me given what I've put my D750 through for 10 years.

For you and your uses, the flagships may be very important. For me they are expensive overbuilt very heavy pieces of gear.

It's not. The one I bought about a month ago only has 9,600 shutter count. Shot a wedding with it and while the controls are a little different than the D750, it's only a little. I had planned to shoot the wedding with a D750 and D600. When I started shooting the D750's hotshoe failed so I grabbed the D850, which I'd only had for a week at that point. If you've never shot a wedding, it's rather intense in regards to equipment usage. Close to non-stop shooting for hours. With the D750 and D600, they are so similar that I rarely know which one I'm using. Shooting a wedding with the D850 and D600 the experience was similar, though a little more pronounced. But really, it's not a factor. So what if the ISO button is on top instead of down the left side? It's not like I change ISO much during a wedding.

And I found a used D750 with only 2,800 clicks on the shutter. Amazing. I guess it was owned by the proverbial little old lady who only drove it to church on Sundays. Trading in my old D750 as is, and a couple of lenses I never use and my out of pocket is just a few hundred - and I end up with a like new D750.

The only problem I'm finding is that I'm finding that there is almost zero market for my D600. It's in very good condition but the used camera places didn't want it and looking on Ebay the few on there have close to zero bids on them. I know the D600 had problems when new but mine was repaired by Nikon and zero problems since. So, I don't know. Might donate it to a school. It also raises the possibility that in a few years when I go to buy a used Z8 there won't be any market for the D750 anymore, but, as someone recently said, "I'll burn that bridge when I come to it."

Would I be better off with 2 D850's? It's open to debate. I only shoot about 10 weddings a year. For portrait work I only use one body. And for travel I really like the lower weight of the D750. So yeah, the model is at least partly obsolete but it still produces some of the best image quality with one of the largest dynamic range.

Thanks. All useful to know. I'm not surprised the Z8 is better. Really I'd be very discouraged if it wasn't as it's 5 years newer and $500 more than the D850 was in 2018. Maybe I'll own one in 5 years 😊

The D750 is a remarkable camera. Well ahead of its time. Beautiful image quality. Built like a tank. Lighter than other full frame Nikons. I'll be very happy to keep one on hand. I call it my backup but it's likely to continue to be my main travel camera because of its weight and when I shoot weddings I shoot with two bodies. One gets a 24-70 and the other gets the 70-200. So it'll get plenty of use.

Thanks! Your comment inadvertently went click in my brain. I'm used to thinking of my D750 as my main camera and my D600 as my backup. But my recently acquired D850 is now my frontline camera. I don't need another one to serve as a backup! That's the word that clicked for me. Thanks. Decision made. Selling the D600 and getting a used D750 as backup.

Never been a fan of superzooms but it's been a long time since I looked at them. As for crop sensor cameras, I really have no interest. I looked at the D500 when it came out and didn't think it was as good as my D750. If I was a wildlife enthusiast this would obviously all be different, but I'm not. I'm more interested in going to medium format but have so far resisted that. Yes, I know crop sensor cameras are smaller and cheaper but they are cheaper for a reason. As for lenses, I have more than I need for my uses. 15-30 f2.8 tamron, 24-70 f2.8 tamron, 70-200 f2.8 tamon so pretty much the holy trinity there. Also have numerous primes but the only one I use to any extent is the Nikkor 85mm f1.8. For travel I have a Nikkor 18-35 with a variable aperture. It's a nice lightweight lens with above average sharpness for an inexpensive lens. I so rarely need telephoto while traveling. On a trip to Europe this past spring I almost never took the telephoto out of the bag. So often I'm either inside a museum, church, or in a narrow street that the wide angle zoom is the most useful. Ditto for the occasional vista.

For astro photography and light painting I use the tamron 15-30. For weddings I mostly use the 24-70. The only reason I could ever see going to a crop sensor would be if I needed the extra reach to turn something like a 600mm into a 900mm but I never do that kind of shooting so no need.

I'd say that 75% of my use is for weddings and portraits. The rest is night photography and travel. The only thing a crop sensor would make sense for in regards to those uses would be travel and I can't see having a body just for travel. In fact, I have an old Sony NEX 6. Super light but not nearly as good as the D750 so when I travel I accept the extra weight in order to get better pictures of places I'll likely never get back to.