6D - Slow Write Speed to Fast SanDisk Ultra & Extreme SD

mvas — Fri, 17 Nov 2017 02:42:05 GMT

I have a Canon 6D that can save a RAW-Only Image at 1 Frame Per Second (forever) until SD Card is FULL = Good.

My friend's Canon 6D can only save 15 RAWS and then slows down to one image every 2 seconds = Bad.

We understand that his camera is filling the Fast Internal Buffer and then slowing down.

But it should not do this at only 1 FPS.

So, WHY is his "Write to SD Card" much slower in his camera, vs my camera?

Is his SD PORT defective ?

Otherwise, his SD Port works perfectly!

Can it be some obscure setting?

Is there any way to TEST the SD Port on a Canon 6D?

We are using the same SD cards.

topic 6D - Slow Write Speed to Fast SanDisk Ultra & Extreme SD in EOS DSLR & Mirrorless Cameras