• BirdForum is the net's largest birding community dedicated to wild birds and birding, and is absolutely FREE!

    Register for an account to take part in lively discussions in the forum, post your pictures in the gallery and more.

New R6 (1 Viewer)


Well-known member
I'm not sure why they are going with UHS-II. That's 312 MB/sec (bus speed, not write speed). The files are about 25 MB each. 25 MB * 20 fps = 500 MB/sec. How big of a buffer do you get and how long will it take to clear? Now, at the 12 fps rate, it's not so bad (300 MB/sec).

CFExpress is 1600 MB/sec.

It's the same with the Sony a9:

Continuous Hi
Compressed RAW

0.05 second
(20.00 fps);
240 frames total;
45 seconds to clear*

Time per shot, averaged over 240 frames, then slowed to an average of about 0.29s or 3.40 fps when buffer was full with a lot of variation.​

Users who are viewing this thread