![]() I don't have an explanation why my numbers are different from Andrew's in a post above.ĪDDED: I've process my 8k raw video and it was fine. Heat does not seem to be an issue for me so far. No problems at all in high burst stills use. My quick tests in camera have not turned up any problems (but, I will be looking at the video being recorded in more detail). It is my understanding (Canon R5 manual page 908) that the max demand on the card will be in 8K DCI Raw at about 325MB/s. ![]() NKI 512GB Card (Paid $299): 400MB/s sustained write, 901MB/s read. ProGrade 325GB Cobalt Card (Paid $419): 922MB/s sustained write, 920MB/s read (may have been limited by my CFexpress reader). Stats are from Blackmagic Disk Speed Test (5GB test blocks). Testing environment MacBook Pro (2019) i9 with 16GB memory using a thunderbolt 3 port and thunderbolt 3 cable attached to a CFexpress reader. Here is a brief test I did on my new NKI 512GB card (plus a comparison to a 325GB ProGrade Cobalt card). Looking forward to your test results (and heat) for this NKI card While it is more difficult to quantify results, testing in camera is probably the only accurate measurement. I've seen very unpredictable results from card readers. Thunderbolt uses the same PCI-e protocol as the CFexpress cards themselves. USB-C and Thunderbolt 3 may provide very different bandwidths. I want to thank all of you great FM members that have taken the time to help with the memory cards information.īe careful how you're testing via card readers. I'm going to do a full write test to fill the entire drive.ĬrystalDiskMark 5.2.1 圆4 (C) 2007-2017 hiyohiyo I think my USB port is limited to 1000MB/sec., but it's reasonably fast. I will test my card this weekend and post the results. ![]() Part of what you're paying for when you buy from established brands is their commitment to their own reputation. SKUs that worked in the past can easily be switched to use cheaper parts. They list an LLC out of Florida for support, so unless that 3 year warranty is honored by Amazon, you're likely to be SOL should the card exhaust itself early.įor anyone considering an 'NKI' card, enter at your own risk. So for a $100 less than my Sony 256GB I got a 512GB card! ![]() It did over a minute (slow cards won't go past 10 seconds) of 8K video in my R5 showing it could hold 24 minutes total. The $299 delivered 512GB NKI card writes above 500MB/s sustained. That software doesn't show the total length. Testing using Black Magic on an M1 Mac Air. The Sony card only tests 100GB/s faster which surprised me. The $299 delivered (after using code NKISUMMER ) NKI card writes above 500MB/s sustained. If you are not doing things that require these high performance cards, you can buy much cheaper cards rated for less performance. Canon has a table in R5 manual that shows the data rates various recording modes require. OP you can save a LOT of money if you just buy cards to meet your own needs. Also very expensive and not needed for most things the R5 can do. Also, I will be looking at how it handles heat.įor the SD card I use ProGrade V90 cards. This is fast enough to do everything that the R5 needs but slower than the ProGrade card. My expectation is that it will support all recording modes on the R5, but its sustained write speed will be in the 400 - 450 MB/s range. I will be testing one of these, you might want to view the clip:Ĭurrently I am using ProGrade Cobalt 325GB CFexpress, but I also picked up one of the 512GB NKI CFexpress to see what it can do. Thank you in advance.Ī review of cards specifically geared to the R5. I thinking about purchasing a Canon R5 and I need recommendations for a fast memory card.
0 Comments
Leave a Reply. |