Fastest card for 5DM3 - do you still buffer out?

[LetTheRightLensIn]

While we are on the subject... I have a Sandisk and a Lexar UHS SD card... so class 10, but basically 45 to 60 mbps... and I was shopping for CF cards the other day and I think the fastest I saw was 1000x in my budget range.

So my question is how much faster is the cf card than the sd card? Is it the write speeds which makes the difference and not the reported read speeds?

On the 5DM3 or just in general? On the 5DM3, the CF slot is the racehorse. The SD slot is not UHS-1 enabled, and seems to max out at about 25% of what the CF slot can do (with the fastest CF card = Lexar 1000X)...

I knew the mkiii didn't do uhs... which ticks me off, but it's more fake anger. So a 4:1 ratio... ouch. I wish there was resale value to my SD cards... but they don't have much of a draw.

Yeah, I will never understand why Canon did that to the SD slot... They have UHS-1 on a Rebel, for goodness sakes! If you write to both cards, for insurance, the SD will slow you down considerably...

I've read that in this case it actually wasn't Canon crippling something but that their chip supplier for Digic, TI, simply didn't make the basic core for the digic with two full speed interfaces and if it had a fast CF interface then the SD slot had to be slow.

 

[LetTheRightLensIn]

I normally use Sandisk Extreme Pro CF cards in my 5D M3 and then several people told me that they don't fill the buffer using a 1000x CF card. I tried the Lexar 1000x card and the buffer still fills up. I seem to get a few more shots before the buffer fills with the Lexar 1000x.

Has anyone tried other cards that are fast enough so that they buffer never fills?

Thanks

You want to avoid RAW+JPG though as the buffer for that can still fill fast. JPGs go without filling up. RAWs go for a long time. RAW+JPG can hit the buffer pretty easily.

 

[jdramirez]

I normally use Sandisk Extreme Pro CF cards in my 5D M3 and then several people told me that they don't fill the buffer using a 1000x CF card. I tried the Lexar 1000x card and the buffer still fills up. I seem to get a few more shots before the buffer fills with the Lexar 1000x.

Has anyone tried other cards that are fast enough so that they buffer never fills?

Thanks

You want to avoid RAW+JPG though as the buffer for that can still fill fast. JPGs go without filling up. RAWs go for a long time. RAW+JPG can hit the buffer pretty easily.

I do highest quality raw + lowest quality Jpg... so not best of both worlds... but good enough.