Lexar Professional 1066x 64GB CompactFlash Card, Up to 160MB/s Read, for Professional Photographer, Videographer, Enthusiast (LCF64GCRBNA1066)

I use this in my Canon EOS 20D and this has been working flawlessly, keeps my image quality, high speed and easy to format, great value for the money and storage, if you own an older camera that doesn't use sd cards and the cards format is CompactFlash thos is for you.

Would I buy again? YESI have purchased several cards.Lexar support and service is top notchRead and write speeds are great. In my 1dx, I can rest on the trigger until the camera buffer hits. Which is by far more frames than I need.7D and 5D3, they work flawlessly in.I have not had one fail, I own 6, all which I've had for a varying time frames. I generally shoot run and gun style, I can be hard on gear and shoot a lot in hard environments, rain, dust, Sand, dirt, dry, cold, hot.I had a 8gb 300x card die after 5 or 6 years of service. I messaged Lexar about it and they shipped me a replacement in 3 days, They didnt just replace it, they upgraded it to the 8 Gb 800x at no charge.

So I got this card and it was immediately apparent that it was faster than my older 400x cards. I guess that is to be expected. Anyway, I started to wonder just how fast it was. I guess it's pretty new, there were no official reviews on the internet of this cardI did find this thread on the Fred Miranda Forum. [...]. Unfortunately there was no data available for this particular 1066x card. So, I decided I'd add my own. (I'm vw151 on FM) Here is what I found.1DX17-40L @ 24mmF/5.61/4000thISO100fresh batterymanual focus12FPSRAWLexar 32 GB UDMA 7 1066x ------------156 shots in a 30 sec burstI did the test 2x got 155 once, 156 onceAnother metric I thought might be useful in this thread was total size of the files produced to account for the difference in file size made by different cameras. The 1Dx vs the 1D4 for instance.Anyway in both cases, my combined total file size was about 3.19GB Do the math and that works out to about 106MB/second. File sizes are about 21MB per image. I think the frames recorded plus this data gives a clear picture of the card's performance.I have 2 cards. I'm gonna run the test 2 more times with the other card.********************************************OKI did 4 more tests on the 2nd card but changed up the parrameters in the 2nd 2 tests.155 shots 3.23GB RAW 12FPS Avg. 5.16 FPS 107.67MB/sec148 shots 3.11GB RAW 12FPS Avg 4.9 FPS 103.67MB/sec312 shots 1.57GB JPEG 12FPS Avg. 10.4 FPS 52.33MB/sec324 shots 1.63GB JPEG 14FPS, Mirror Locked Avg. 10.8 FPS 54.33MB/secThe interesting thing was, Jpeg @ 12FPS, It didn't sound like I ever got off the buffer but Jpeg @ 14fps it got into the buffer hard at about 10 seconds in. but it still made more pictures in 30 seconds.I also see file transfer rates from the card to an SSD or RAID0 at around 115MB/sec.Please keep in mind these are real world benchmarks, not lab tests. None the less, if I reproduced the test on the FM forum reasonably well it seems the write speed in a 1DX is no better than the 1000x which the tester managed 160 shots in 30 seconds. Nothing wrong with that as the 1066x is just the successor to the 1000x and it seems we are reaching the maximum of the CF interface with these cards.

Very very fast!! I use this in my Canon 5D Mark III. I installed Magic Lantern and needed a card capable of recoring 14-bit RAW video at 1080p resolution on the camera. This card does not get close to getting locked up, no matter how long the video keeps going. For so long I thought walking into Best Buy and getting a cheap card on sale was all I needed. Wow, I can't believe it took me this long to switch to a high quality card. They say fast glass (f1.8 f2.8) for good photos, and now I see why fast cards will help with that as well. Transferring speeds to my computer using an USB 3.0 card reader were around 100MB/s. This thing is amazing, and I will definitely be ordering more in the future!

We use with Canon. Works well compared to others.

Can you look in your viewfinder and see '28, 38, 45, or more photos available in your cache? I can, and I thought that was it. Shooting 14bit, RAW, FX images, I felt I was set as set could be. But there's more to image buffer than 'run and gun', in fact there's prof practical reason to use. A, biggest, in wildlife photog, the SHOT, is always one that happens instantly, no notice. Predicting that is within the shooters ability, like a Hawk suddenly taking flight. I don't know what you shoot but that takes less than 1 second and if predicted using burst mode, you often get those great shots. Why is this card great, here, because usually the SHOT comes at the tail of even 40 frames of.buffer, and once caught, if your skilled, you can then often get a 2nd winner in flight. IF you have buffer space, or ******Your CF Cards Dumps so fast the Camera literally maintains a continual 1-2 fps shooting because it's got the room. I was using the 32 G 800x 120mbs card and it would give me a couple shots at the end, good, very good, but this difference is literally noticeable. I can use 9 FPS, (note most adjustments off like high ADL, High NR, ETC), but raw 14bit w/ 38min showing in my buffer. Power through the buffer and I'll continue to get 1 to 2 fps continued endlessly. 2fps idk what clears the card faster for this but it will normally start w/ 2 right after buffer empty. Then continue at 1, but hiccuping 2 every couple shots. So that is dramatically faster than the 800x which is now my #2 cf card. Enjoy and search I got mine w/ no incentives for review for $40 @!!!!

I was in need of a replacement card for an upcoming wedding. This was perfect, good price and was delivered quickly!

Great cards, durable but most importantly, very reliable. I've got 8GB and 16GB versions of these and had been using them for almost 4yrs with no issues/problems at all! So when this deal came along for two 32GB cards, I jumped on it! I basically got two cards for the price of one, I can't complain one bit. The speed and performance of them are top notch and at 32GB, it's got more than enough memory for any event I am shooting and enough space to do video if I need to.