PhotoDerek Loc: County Durham, UK.

I use Lexar in my D5, bought when the camera was new in 2015 but Lexar have stopped production. Now Sony makes a XQD G card that has pro specification.

Notorious T.O.D. Loc: Harrisburg, North Carolina

I shoot Canon with CFast cards in 64 and 128GB. Those sizes seem to cover my needs. I think those sizes would work well for your 850.

Howard5252 Loc: New York / Florida (now)

Now that the Hoggs have weighed in, turn to page 360 of your User's Manual and see what Nikon suggests.

Ron 717 Loc: Pennsylvania

It appears that Mt Shooter was just correcting some information that was a little mis-leading. Some of us on here want to learn and all the more info we can get is very helpful. I would trust Mt Shooters knowledge anytime.

DirtFarmer Loc: Escaped from the NYC area, back to MA

The capacity you need will depend on your shooting preferences. I have 32Gig and 64Gig sizes. 64 is good for any of my large shoots, in which I generally produce around 500-800 shots. 32 is quite sufficient for casual use. The cards are moderately expensive so I don't generally get cards larger than I need. I download my shots as soon as I get back home. I leave the shots on the card until the files are downloaded, imported into LR, and backed up. I then reformat the cards in the camera.

If you expect to shoot a lot, use the 64Gig cards but carry the 32Gig cards as a backup in case you manage to fill the larger one.

scaudill Loc: Rock Hill, SC

Thanks everyone

allanwalls Loc: Fairhope, Alabama, USA

I have been using Sony XQD with my D850 for the past year. 64GB seems to be the sweet spot for my workflow.

cameraf4 Loc: Delaware

Ditto for me. I use 64GB Sony and keep a 32GB Sony back-up just in case. But Delkin is on my radar.

cameraf4 Loc: Delaware

Wow, Rich. Snarky much?

mikeroetex Loc: Lafayette, LA

Settle down there Richie. MTShooter already answered the OP's original question. He was just clarifying and correcting your information for everyone's benefit. This is, after all, a discussion forum.

Personally, I was already wondering if there were alternative cards, as I have a D500 and am contemplating a D850 or Z7.

mak02645

The XQD format is a very fast one. When Lexar withdrew from the market, it left Sony as the only major player (with a couple of others make the format). But the Sony cards aren't cheap. If you only want to get one, I'd suggest 128 GB as the most practical size. And you can use a fast 64 (or 32) SD card as a back-up. I read somewhere that the new CF Express card will be slower than the XQD. (We're well invested in the card, since we have the Z7, D850, and the D500 -- all of which use it.) BTW, enjoy your new camera. You'll love it.

scaudill Loc: Rock Hill, SC

Thanks for the information

larryepage Loc: North Texas area

I haven't seen that anyone talked in specific terms about capacity. So here goes...

Because of the current cost of XQD cards, and because I do not routinely do burst shooting, I made the decision to use a fast SD card as my primary card and XQD as secondary. If I get into a situation where I need to swap, one menu operation can do the switch immediately. The rare video that I shoot always goes to the XQD card. I have both a D850 and a D500 set up this way. Raw files go go a 256 GB SD card and JPEGs go to a 120 GB XQD card. I have never run into a problem or delay with either camera operating this way, although it will certainly not allow either to do as long a burst as would be possible saving the larger raw files to the XQD card.

With the camera set up for full size 14 bit raw and for fine/large JPEGs, the D500 has a capacity of about 5400 images and the D850 has a capacity of about 2300 images. That's a lot, and when I buy additional cards, I'll probably go with about half that size. By the way...I would estimate that a Z7 would be able to save somewhere around 700 or 800 images (raw + JPEG) on that same 120 GB card.

I use Sandisk SD cards and Sony XQD cards. Zero failures or problems.

Rodwil

Just read this today. https://www.popphoto.com/best-memory-cards-for-photographers/?utm_source=internal&utm_medium=email
No opinion, just information.

Fotoartist Loc: Detroit, Michigan

Go with a smaller size for photos. You don't want to put all your eggs in one basket. Shooting video go for the large size.