Have you been in a situation looking for your next SD card, comparing different brands and models, and trying to choose the best for your needs? Then you realize that on some of the SD cards you see the speed in MB/s, on others you see it with the “x-rating” (like 633x, 1000x, 2000x). Furthermore, some cards have shown the speed class number (usually nowadays it is C10), and some have a U1 or U3 sign. Some are marked with SDHC, and other SDXC I or SDXC II. And some cards have V30, V60 or V90 on them… So what do all these numbers mean?
CFexpress – the next generation memory cards for digital imaging
As technology progresses, we see that the memory cards are getting faster and with bigger capacity. For many years, CompacFlash was “the standard” of the imaging industry and was widely adopted by most companies desiring the highest capacity and performance available. SD cards, long perceived as non-professional media, fought their way to still be dominant on the market today. Nowadays very few cameras use cards different than SD. Nikon use XQD cards in their D5, D500 and D850, while Canon use CFast cards in their 1D X Mark II and dual CFexpress Type B in 1D X Mark III. Several older models use Compact Flash cards and this is it. All other cameras use some variation of SD cards – SD, SDHC, SDXC. Will a new standard (CFexpress) raise from the ashes of XQD ad CFast?
5D Mark III Adobe Adorama Announcements Canon CFexpress D700 D800 D810 D850 DSLR Firmware update Fujifilm Lexar Luminar 4 Macphun Nikon Nikon 16-35 f/4 VR II Nikon DL nikon mirorrless Nikon Mirrorless nikon Z Nikon Z6 Nikon Z7 Olympus On1 ProGrade Digital Recall Samyang SanDisk Sigma Skylum Sony Sony 24-105mm Sony A9II Sony GMaster Tamron Tamron 28-75mm TimeLapse UHS-I UHS-II Voigtländer X100F X100S Z6