Summary: I bought this Lexar UDMA CF card several weeks ago for use with my new Canon EOS 7D camera, after reading revues on the card on Amazon. Reviews on the camera also recommended a UDMA card for maximum performance by the camera. Works great, and is an incredibly fast CF card. I do mostly nature photography especially butterflies and dragonflies.
Summary: I am a pro wedding photographer. In 2007, I bought a brand new 4GB Sandisk Extreme 3 memory card (which was like $215 at the time). The first time I used it was at a wedding and the card was defective...so I almost lost 80% of the wedding images. It took a few weeks and two different pro data-recovery companies in California to retrieve the images. Oh, and it was expensive. After that, I did a lot of research on memory cards and such.
Summary: My old setup (firewire 400 card reader, sandisk Extreme III card) transfers a 1Gb file at 104.6 Mbps. The new setup (this card plus a Lexar CompactFlash FireWire 800 Card Reader RW034-001 ) does the same job at 285 Mbps. I have no complaints.
Summary: I picked up 8Gb of the Lexar Professional to go with my new Canon 7D and I have been impressed with the transfer rate compared to my older memory. I plan on purchasing more in the near future.
Summary: It works well, saves some great looking photos and it runs fine thru my MedaiCard USB card reader. The card reader runs through the monitor on my PC's monitor. No issues. Holds plenty of photos. I am please I stepped up to what may be the fastest and highest capacity CF card I know about.
Summary: The Lexar Professional 300x UDMA Compact Flash card is one of the cards listed in the D700 manual as an approved card. I tend to stick with the approved cards and my choice is an 8GB card. I've also tested continuous shooting speeds on the D700 and this card performs as expected. I typically choose either SanDisk or Lexar but since the Lexar cards from Amazon are actually sold by Amazon, I decided to go with the Lexar. You really can't go wrong with either brand.
Seems like a great card, though I did get one lemon
Christopher Aram, Amazon
3 March 2010
Summary: Great card with one major complaint - one of them randomly corrupted and stopped working for me. I format my cards in camera before use. I tried everything and eventually sent it to Lexar for lifetime warranty replacement, which they fulfilled pretty promptly. As a wedding photographer losing a card simply isn't an option, though I shoot with a D3 in backup mode in case it does happen.