via the lens Loc: Northern California, near Yosemite NP

I love my D500 for wildlife and action shots. It has an endless buffer! I use the 200-500 also. Great camera. Of course, also good for any general shot where one might want to use a crop camera.

Paul Diamond Loc: Atlanta, GA, USA

In the used camera market, the D800E is well below $1,000 and used D850's have begun to fall from prior lofty prices. Neither is $3K.

Flickwet Loc: NEOhio

Definitely the d500, if size and weight matter, compared to the D850 it’s a lot smaller, I use mine with the 24-120 f4 gives me 36-180 field of view which is a sweet spot

billnikon Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont

I have used the D500 with the 200-500 5.6 lens for many years in Florida Wetlands. It is very versatile in that on the D500 it carries an angle of view of 300-750 mm. I have also found that I can put more EFFECTIVE MEGAPIXELS on the subject vs. using a FF camera from the same distance. BUT, there are trade offs and this is not always the case, if your bird is close the D810 or course would be the better camera.
I currently use the D850 with the Nikon 500 5.6 FL lens. It is effective and sharp.
Consider this, you have two D750's, sell one and buy the D500, that would give you a nice line up of a D810, D750, and D500. And, Nikon produces great firmware in their expeed processors. The D500 is expeed 5 processor, the D750 uses expeed 4 processor, so in a way your stepping up one generation.
The other advantage most folks forget about with a cropped sensor using a DX lens is this, with the cropped sensor camera you are only using the center part of the DX lens, the BEST PART, and at times that can be an advantage. Anyway, you have a decision to make, I hope my comments have been constructive. I leave you with the following image taken with the D500 and the 200-500 mm 5.6 lens.

CO

The OP already has a D810 so there's no reason for him to get a D800E. I just the B&H Photo price for the D850. They show it as $2996.

uhaas2009

definitely the 850

ELNikkor

Don't know if it makes any difference, but the D750/D810 have built-in flashes, whereas the D850 and D500 do not. I like the versatility of having the flash on all my Nikons. Whatever you get rid of, keep at least one body with that flash on.

ronichas Loc: Long Island

I have a Nikon D500 and a Nikon 24-70 f2.8 that I would love to sell. I am now using Sony.
The D500 is in great condition, some wear on the outside but inside is clean.
Photos on request.

tshift Loc: Overland Park, KS.

The D500 is Nikons top of the line crop camera. Excellent camera and shoots what 10 fps. If you shoot sports the is a great pick. Thanks

Tom

larryepage Loc: North Texas area

I have a D810 along with a D500 and D850. I have not used a D750. The D500 is a great all around crop sensor camera. I use mine with just a couple of DX lenses (17-55 f2.8 and 18-200 just for fun) and a wide range of full frame lenses, mostly the 24-120mm f4.

It is a great option when I don't want or need the huge files from the full frame cameras. The shooting experience with the D500 is most identical to the D850, although you will find image "character" a very close match to your D810 as well, along with low light and high ISO performance.

One thing to keep in mind is that a couple of key controls have been relocated on the D500 (and the D850 as well) compared to the D810 and other earlier models. If you make adjustments "on the fly" while shooting, this could make a noticeable difference to you.

Finally..."reach" is probably not a significant reason for changing cameras. The D500 will provide a very similar image to a cropped capture from your D810. As I get older, I appreciate more and more having the wider view ftom the full frame camera when shooting.

Have fun as you make your choice.

Old44

The D500 is a fabulous camera, but why not look at the D780.

photoman43

I use a D850 and a D 500 with a D810 as backup. The main reason for the D500 is faster shutter speeds of 10 fps for my nature photography, mostly birds, and extra reach too from the crop sensor. but that is secondary.

My D850's fastest fps without the expensive special battery is 7 fps. I have found that is not fast enough for my needs. If it is fast enough, consider getting a D850 over the D500.

My Nikon 500mm f55.6 PF lens is on the D500 all the time just waiting to be used.

Both the D850 and the D500 are set up pretty much the same and both use XQD cards. I find that to be a plus.

Blair Shaw Jr Loc: Dunnellon,Florida

The Learning Curve Cometh......$$$$$$$$$

Hip Coyote

I agree with CHG Canon. Also, it seems you are getting wrapped around the axle on "stuff." You have great equipment. Is there better our there? Yes. But at some point just stick with what you have and work on technique, subjects, mentoring others, etc. I really don't see a huge benefit of upgrading or changing your kit.

MichaelMcGrath Loc: Ireland

D850 & D810 have Moire, only the D800 hasn't and that would be better than the D810. You can switch into crop mode on the D800 and used your crop lenses too. And the D800 has a very light anti-aliasing filter as well.