6d Mll

What is the best SD card to use with 6dMll

I'd suggest the Sandisk Extreme Pro. A 32 GB version will set you back $30 at Best Buy. I suggest you select the vendor carefully. There are many counterfeit cards in the marketplace. Best Buy purchases direct from Sandisk, thus no middleman.

One that writes at a good speed. This is a good site to check on card speeds:

https://www.cameramemo​ryspeed.com/

Good site.
I also recommend SanDisk. I'm not sure how big the fake SanDisk card issue is these days but it always helps to buy from someone reputable. From what I understand, most of the knock-off memory cards were coming from E-Bay.

ksbal wrote in post #18581048
One that writes at a good speed. This is a good site to check on card speeds:

https://www.cameramemo​ryspeed.com/

gjl711 wrote in post #18581076
Good site.

The newest "news" on the site is from April 4, 2017, almost a year ago. The 6DII hasn't changed since its release but I suspect some memory card specs have.

I have been using a 64 GB San Disk Extreme 90 MB/s card (which I received as part of the package from B&H when I purchased the camera) and have added two of the same type 32 GB cards. I am quite satisfied with these but really wish that if the camera could only have one card slot; that the slot would be for a CF card...