[jatrax]

using either DA*300,DFA 150-450, or DA70 +1.4TC ,AFS & AFC mostly single spot,sometimes 9 pt. all options turned off, RAW(DNG) + Jpeg L FF mode with crop mode maybe 30+ FPS so it only happens in FF mode. latest FW 1.10,fresh battery or grip attached

I assume this is intermittent, not all the time?

I just ran a test with those settings, with RAW only I get 13 images before the buffer fills. With RAW+ I get 11. I ran 5 tests with no issues. Dual 64gb SanDisk Extreme Pro cards.

You might try with only one card, or with a different card. If it is intermittent I wonder if there is a card fault that causes the burst to end? Maybe try a card format if you have not done so.

[Shanti]

I assume this is intermittent, not all the time?

I just ran a test with those settings, with RAW only I get 13 images before the buffer fills. With RAW+ I get 11. I ran 5 tests with no issues. Dual 64gb SanDisk Extreme Pro cards.

You might try with only one card, or with a different card. If it is intermittent I wonder if there is a card fault that causes the burst to end? Maybe try a card format if you have not done so.

Have tried with 1 64GB card as well..its weird as sometimes I get 11-12,other times only 6?? same card in K3II is fine? maybe a UHSII card is needed?

[Shanti]

Seems another K1 owner with serial close to mine has exact same issues!! I wonder if a faulty Ram module or something?? will write to Ricoh on this..as 6 shots is useless for BIF..

[rawr]

Have you tried any 32GB or smaller cards?

And avoid high ISO - buffer and fps tests are run at ISO 100 according to CIPA standards.