On Nov 18, 2017, Bill W wrote
(in ):

On Sat, 18 Nov 2017 16:31:39 -0800, Savageduck
wrote:

On Nov 18, 2017, Eric Stevens wrote
(in ):

On Sun, 19 Nov 2017 10:57:11 +1300, Eric Stevens
wrote:

Snip

Does this throw any light on the card requirements?
https://www.dropbox.com/s/6a9lvyuhcy...Cards.jpg?dl=0

Is a UHS-II card a "Type II card" which the manual says "cannot be
used"?

Yup!

I don't think so. UHS cards are much faster than earlier cards with
"Class" ratings. And "Type 2" refers only to CF cards.

https://havecamerawilltravel.com/pho...-microsd-cards
/

Much of that is true. However, there are times that the camera manufacturers
can screw things up for the user. I have been fortunate in that I haven’t
pushed things with my D300S keeping the UDMA CF, and moderately speced SD
cards.

With my Fujifilm X-T2 I have two UHS-II SD slots, and I use 300MB/s UHS-II in
that exclusively. I shoot RAW+Fine JPEG writing RAF to card #1, and JPEG to
card #2.

I have used the UHS-II cards in my X-E2 which is a UHS-I camera, and I have
not experienced any issues. So for that camera, at least, the bacjkward
compatibility does work.

So now we know, the problem was, Peter was using a card which the D800
couldn't support. This time he actually had too much card for the camera.

There is nothing wrong with the card, and he should be able to use it in his
D500. That will handle UHS-II cards.

UHS2 is backwards compatible with UHS1, but there can be issues in
card readers that aren't set up for 2, just like Peter was told. I
still wouldn't be surprised if the problem arose from multiple
exposures, and some possibility that the backward compatibility
induced problems. There are more contacts on UHS2 cards, and contact
placement in the camera might be an issue. If I were Peter, I might
stick with UHS1.

All, or much of your argument is valid, and I believe your final conclusion
is correct, that Peter should stick with UHS-I in his D800. This is a classic
case of the support requirements of the camera being misunderstood, not
known,or ignored, or backward compatibility of the UHS-II not valid with the
D800.

--

Regards,
Savageduck