Why and How You Should Be Using Both of Your Camera's Memory Card Slots (video)
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If your camera has two card slots, consider using both slots and large cards.
Over at my blog post at the OWC Rocket Yard:
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OWC Blog: Why and How You Should Be Using Both of Your Camera's Memory Card Slots
Video below, or watch on YouTube.com.
Camera shooting rate vs SDXC card speed
OWC Atlas Pro specifies a minimum write speed of 60MB/sec. In practice, that is almost never going to happen, a sporadic and brief dip aside.
The GFX100S can shoot at 2.9 fps raw. Adding in a JPG Superfine to lossless compressed raw, that’s about 110 + 40 = 150MB per shot ±= 20MB or so depending on subject matter.
Assuming continuous capture of 23 frames (camera buffer max), that’s about 3450 MB of files. In theory, if a V60 card performed at its minimum write speed of 60MB/sec, it could take 58 seconds to write it all out. In practice, I have never seen anything anywhere like that. Basically, the 30 or 40 frame focus stack is all written within a second or two of the captures being done.
Such a slowdown is highly unlikely: with OWC Innergize the OWC cards can be restored to factory-fresh performance, an awesome feature that no other vendor offers to my knowledge as I write this.
Finally, my testing in which I brutalized the OWC Atlas Pro shows a sustained speed of 268MB/sec across the full 256GB capacity!
No real-world usage will ever push a card that hard* in actual use for still photography. Well, OK, a 300 frame focus stack might, but that GFX100S would self-limit to a much slower rate once 23 frames are shot (full internal buffer). If you do that sort of thing, you had better use a CFExpress Type B card in a Fujifilm GFX100 II.
Note: no SD card can ever be fast for encryption for technical reasons. So ignore that write speed for encrypted. See also Incredibly Fast OWC Atlas CFExpress Type B Cards in OWC Atlas FXR Card Reader, Encrypted or Not.
