Thanks, PJ

That seems to settle it. The K5 bus allows a write speed of 25Mb/s so an Extreme Plus (30Mb/s) would do better than the Ultra (10Mb/s) which I have. Only the newer models like the K3 & K1 can take advantage of Extreme Pro cards.

Alan C

-----Original Message----- From: P. J. Alling
Sent: 15 May, 2018 7:49 PM
To: [email protected]
Subject: Re: SD Card Question

This article seems to indicate a higher bus speed for K3 and a few more
recent aps-c models, but other testing seems to show it closer to my
original reply.

https://www.pentaxforums.com/articles/photo-articles/comprehensive-sd-card-guide.html


On 5/15/2018 9:10 AM, Alan C wrote:
ScanDisk Extreme SD Cards are rated faster than Ultra SD Cards but would the a K5 be able to take advantage of the higher write speed?

The K5 files are considerably larger than the K7 files so a usable higher write speed would be quite helpful.

Alan C

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