7DMK11 - SD card help (1 Viewer)

I have a 7DMK11. For an upcoming trip I am going to get a new 32GB CF card but will also be getting a 32GB SD card to extend my memory capacity. I don’t usually bother with the SD cards, but since I plan on shooting some video, the extra storage will be handy.

I read that the write speed of the images via the buffer to the card will be based on whichever is the slowest transfer rate of the card.

I plan on getting a CF card and an SD card that match – so does anyone have any recommendations, based on write speed, what would suffice?

Also, I want to use the SD card as an overflow to my main compact flash card – anyone have an idea on how to set that up so images automatically get written to the SD card when the main CF card is full.

Thanks!

For auto switch go to Yellow menu (spanner) No 1, option 1 "record function etc".
choose the auto switch option.

ta dave!

People have compared some UHS-I cards, see here and here. There is a newer Transcend card "Transcend SDXC UHS-I U3 Extreme 64GB" which I am using. It has been tested as offering write speed of 86 MB/sec.

I use a Sandisk Extreme Pro 95MB/s (32 GB) card in my 7D2. It gives 30+ RAW files at 9fps before it slows, about 10-12 frames less than a Lexax 32GB 1000x CF card in the same camera. The buffer clears quite quickly so it covers my wildlife needs very well.

johnf3f said:

I use a Sandisk Extreme Pro 95MB/s (32 GB) card in my 7D2. It gives 30+ RAW files at 9fps before it slows, about 10-12 frames less than a Lexax 32GB 1000x CF card in the same camera. The buffer clears quite quickly so it covers my wildlife needs very well.

Click to expand...

Test results from Chip seem to confirm that the Sandisk Extreme Pro 95MB/s is faster than the Transcend.