MICRO SD vs 5D MK3???

[morchriscosta]

Hi guys...

i've just bought a  64gb micro sd card with an adapter, but my 5d mklll won't even turn on when i insert the card on it...

is this a common problem??

thanks all....

[diverhank]

You are supposed to use the regular SD cards.  Actually for the 5D Mark III, you should use the CF card as the transfer rate is a lot higher for the CF card slot than the SD slot.

[Waddizzle]

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@morchriscostawrote:

Hi guys...

i've just bought a  64gb micro sd card with an adapter, but my 5d mklll won't even turn on when i insert the card on it...

is this a common problem??

thanks all....

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Yes.  It is not unusual for the adapter to be an impediment.  The micro-SD cards should only be used in devices that use them directly, without the adapter.

[Peter]

I have used Samsung MicroSD without any issue. But as already written, with 5DIII the SD card will give you a write speed of 21MB/s. If you overclock the memory bus you could get around 50MB/s, but your card may break.
With CF I have seen around 120MB/s with Komputerbay x1066.

If I were you I would install SD Formatter,use a card reader and format the card with SD Formatter first.