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Some info on CF express cards for X-2HS

Started 10 months ago | Discussions thread
MrKazador31
MrKazador31 Regular Member • Posts: 174
Re: Some info on CF express cards for X-2HS

Snap Happy wrote:

Greybeard2017 wrote:

MrKazador31 wrote:

I'm having trouble understanding what this note means in Fuji's compatibility chart. I bought a Lexar Gold 128gb. Does it mean that I can't get 40fps or does it take longer for the buffer to clear?

*3 It makes shooting time longer for burst photos to use CFexpress cards marked “✔✔” comparing with the cards marked “✔” even if the both cards are same sizes.

you get the 40fps burst for a shorter period of time AND it takes longer for the buffer to clear

I interpret it the other way round 'longer' meaning more frames in a burst before the buffer fills.

What is slightly confusing is Lexar Gold sustained write is 'only' 1000MB/s compared to 40-50% more for Delkin Black and Prograde Cobalt.

I don't perceive much real-world difference between Lexar Gold and Angelbird SX (for stills), and the latter has a much higher sustained write speed.

I have a Delkin Black on back order, but don't expect to see any difference, for stills.

Re-reading the note again, I think you may be right. Bursts lasts longer if the card has two check marks. The buffer might clear faster. I think card manufacturers only report sequential write/read speeds. When it comes to burst photos the camera is writing a bunch of smaller files. You'd probably want a card that has better random write speeds.

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