jerryc41 Loc: Catskill Mts of NY

Comparison -
https://ukuleleadventures.com/news/
https://www.lensora.com/comparecameras.asp?c1=nikon-z9&c2=nikon-d850
https://www.bhphotovideo.com/c/compare/Nikon_Z9_vs_Nikon_D850_vs_Nikon_Z7_II/BHitems/1629829-REG_1351688-REG_1599731-REG

YouTube -
https://www.youtube.com/results?search_query=Nikon+Z9+vs+Nikon+D850

tcthome Loc: NJ

Both would be excellent & if you're talking mostly or only Landscape, the Z7II might also be a great choice. The EVF in a mirrorless would be a great option in bright sunlight & a great option should you choose to shoot some video once in a while. Other than the EVF for bright sunlight & video, the D850 is the best all around Nikon DSLR. How much longer it will be supported is a guess. Probably 5-7 yrs. Maybe even 10 yrs. Anything short of dropping or it getting submersed in a lake or saltwater, it will probably last you close to forever.
Ps; If you think you might shoot vid, the Z9 would be the way to go in the Nikon world.

leftj Loc: Texas

People will argue about superior results but if money is no object I would go for the Z9.

cjc2 Loc: Hellertown PA

I have a Z9 and I had a D850. My comment is that a Z9 is a combination of a D850 and a D6, but on steroids. The D850 was my favorite camera, except for sports. For what you want to do, I would suggest the D850 because it it a great camera and costs much less. If you want a mirrorless, look into a Z7 or Z7 II. The Z9 is for sports guys like me. Best of luck.

1grumpybear

Owning both I would go with the D850 for your requirements. I also shoot sports and action so I used my D6 for that. With the Z9 you have the combination of the D850 and the D6. High resolution and 20fps with the Z9 plus many other features. I now own (2) Z9s witch allows me to have 24-70 on one and 70-200 or 100-400 on the other. If you have the budget and time I would go with the Z9. Here are 4 pics I shot with the D6 and looking forward to this years football season shooting with the Z9 with the higher resolution.

imagemeister Loc: mid east Florida

If sharpness matters, this would be my thoughts also. All the Z lenses I have seen Imatest numbers for show better than F mounts.....

sippyjug104 Loc: Missouri

If...I needed to do landscapes or portraits on a professional basis, my camera of choice would be a medium format. I think they are designed for those tasks and they do them well. I would not invest in one as an "all-around camera with video capabilities". I believe in buying a tool that fits the need of the job at hand and not buying a tool with the thought that there may be a need for it someday. Why buy a wrench or socket set with sizes that are so large that there is nothing you own that has nuts and bolts that large?

Manny Myers

Depends on what YOU are interested in. Personally, I own two Z-line lenses: the 24-200mm 4-6.3 and the 105mm MC Micro. The latter does a phenomenal job up close, but still produces crisp landscapes when needed, and great portraits always. The former is a great travel lens that does not disappoint. In my local NIkon Group, the 105 is absolutely the most popular lens at the moment (and just under the $1K line).

PhotosBySteve

The one that is in good hands

Photec

Yes, either and both will easily fit your needs. I have had the D850 for quite some time and have shot the Z9 several times to compare the images (mine is still on backorder). My advice is for you to handle both before you decide what is right for you. How does each FEEL in your hands up to your eye? They are both about the same weight but have a different feel. Which do you prefer? Z lenses are new design and, IMO lighter and better, but the FTZ adapter will allow you to use the older F mount lenses which will be exactly the same results as the D850.That of course will save you a lot of money overall. Just keep in mind, the D850 is the last of a generation of Nikon models and the Z line is a whole new line of Nikons.
P.S. The Z7 is more similar to the D850 than the Z9, but the 9 is actually a full Pro camera. Do you need a Pro camera?

photoman43

Both camera bodies, Z9 and D850, will give you superior results if you use the right lenses and shoot with the proper techniques. So will other Nikon bodies already mentioned above. I use both the Z9 and D850.

If you are a first time Nikon purchaser get Z mount S lenses for a Z body. If you already own good F mount Nikon lenses, get a D 850 or a Z 7ii or a Z9 and upgrade your lenses to Z mount when you can.

Architect1776 Loc: In my mind

Z lenses are better, the z9 sensor is generations ahead of the old D850, following the newer tech you will have far less noise which the D850 suffers from by comparison to the Z9.
Your call.

SuperflyTNT Loc: Manassas VA

I agree completely here! The Z9 is way overkill if you’re just shooting landscapes and portraits. You really don’t even need the second iteration of the Z7. I almost bought the D850 when it was on sale 2 1/2 years ago but went with the Z7 and I’m happy I made that choice. IQ wise there’s no real difference in the bodies. As for lenses, most my F mount lenses worked flawlessly with the adapter but I’ve since sold most of those and bought some great Z glass which I think gives a slight edge to the Z7. I love that I can see the exposure when shooting landscapes, or really anything where I’m using EC. There’s no more guessing how many stops to adjust. Also when I’m shooting with ND filters I can see the exposure as long as it’s not over 30 seconds, no calculating needed. Actually while I love the Z7 and it’s excellent for both landscapes and portraits if I was buying now I’d go for the Z7II because the face/eye tracking is even better and I can extend those ND filter long exposures to 15 minutes and see the exposure.
All that being said I’m getting a Z9 because I shoot a lot of wildlife.

mikeroetex Loc: Lafayette, LA

Neither. The Z7II however will do exceptionally well.

cbtsam Loc: Monkton, MD

Of course the answer is that you get a set of wrenches with various sizes you don't currently need because, eventually, the larger and smaller sizes that you don't need today you may well need tomorrow. I think that's why sockets tend to come in sets. As besotted as I am with my 2005 S2000, I may someday have another car, and need different wrenches, or my wife may order some garden furniture that requires "some" assembly, and those other sizes will come in handy.