Canon 1DX Mark II CFast 2.0 cards?

[Jaime Valles]

Hello, gang! I just got a 1DX Mk II and I need some CFast 2.0 cards for it. Does anyone know if these will work for shooting 4K 24p on the 1DXII?


https://www.cdw.com/shop/products/T...card-256-GB-CFast-2.0/3409091.aspx?pfm=srh#PO


They're significantly cheaper than the faster cards, but I need to know if they'll work for 24p (I assume they won't work for 60p).


Thanks!

 

[NorBro]

The CFX600 appears to be a discontinued product, but has a write speed of up to 160MB/s, so you should be covered for both 4K/24p and 4k/60p (800Mb/s = 100MB/s).

However, I would invest in a better card (if you can) so you can possibly use it with other cameras in the future.

3x faster for only a bit more:

http://www.bhphotovideo.com/c/produ...ices_ddcfst560256_256gb_cinema_cfast_2_0.html

 

[AndreeOnline]

CFX600 is still current as far as I know. I often see them marketed as 'industrial' cards though.

They will not work with 4k60 in the 1Dx mkII. I've confirmed this.

Normal CF cards (not CFast, but look for VPG65) work with 4k25 (for many years now with the 1Dc), so any CFast 2.0 will work with that too.

The CFX600 is a great card for the XC10 4k and I've seen mentioned in an other thread that it also works fine in the C300 mkII.

 

[AndreeOnline]

3x faster for only a bit more:

http://www.bhphotovideo.com/c/produ...ices_ddcfst560256_256gb_cinema_cfast_2_0.html

Haven't seen this card before. Looks interesting.

As more legit cards (450+ MB/s read/write) come down in price, it makes more sense going that route.

 

[NorBro]

They will not work with 4k60 in the 1Dx mkII. I've confirmed this.

How come? Dropped frames or just doesn't record at all?

 

[AndreeOnline]

How come? Dropped frames or just doesn't record at all?

The cards work fine for everything but 4k60.

I'd say it's due to sustained write performance. My older normal CF cards, Sandisk Extreme Pro are specced as 150MB/s write speeds, but at the same time they "only" conform to VPG65 which means they guarantee 65MB/s sustained write performance.

The Transcend CFX600 probably has peak write well above 100MB/s, but they won't sustain it indefinitely. In my test, the CFX600 started to record data in 4k60 but only lasted for a few seconds. I use the more expensive (but still good price/performance) CFX650 as my goto card in the 1Dx mkII. No issues there.

And remember that 4k25, or 100/120 fps can be recorded to normal CF cards like the VPG65 SanDisk above.

 

[Jaime Valles]

This is perfect. I already have the SanDisk 64GB card that came with the 1DXII that I can use for 4K 60p, so the other cards don't have to be as fast, since most of what I shoot is 4K 24p.

Thanks so much for the info!