Twins?

B

Borga Voffe

Senior Member
Just bought this:

SANDISK Extreme Pro 95MB/s SDXC UHS1 U3 633X Flash Memory Card 128GB

Should the other card, which I use as backup, be identical?
 
M

mauckcg

Senior Member
If your card in slot A is larger, and you are using B for backup, you will only fill A up to whatever the size of B is. Speed only really matters if you need the speed. I ran two 32gig version of those cards in my D7100 to get as much buffer performance as i could.
 
Danno

Danno

Senior Member
Borga Voffe said:
What happens if

A) You have only ONE card
B) You have a 64GB card as backup

Do I need two?
Click to expand...

I use two. I got a deal on two 64gig cards so both mine are the same, but if I wanted one simply as back-up and I did not intend to clear it off at the same time as I clear card 1 I would put the bigger card in slot 2.

The way I do it is I put raw only on card 1 and raw + jpeg on 2. I use the second card as back up and I tend to clear them both at the same time.

It is nice having two cards in the camera. More than once I have forgotten card one in my laptop after downloading some photos and having that second card saved me.
 
M

mauckcg

Senior Member
Borga Voffe said:
What happens if

A) You have only ONE card
B) You have a 64GB card as backup

Do I need two?
Click to expand...
For A, that will be the card that the files are written to. No backups or anything

For B, if card A is larger, A will only fill up to the capacity of B. If A is smaller, then it will fill up and B will be filled to A's capacity.
 
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