After using the Sony FX30 for a few years, I can honestly say this camera system is reliable. It is compact yet delivers a massive punch, it's fair to say I'm very pleased with it. So it's likely I shall continue using the Sony's cinema line in the future.
With that said, using a CFexpress Type A starts to make more sense. After all , the Type A CFexpress is exclusive only to the Sony cameras. Maybe it's a Sony's proprietary ?
Bottom line is, CFexpress A is not as widely use as a SD card, so unless you're a Sony fanboy or absolutely confident that you'll keep using a Sony, CFexpress A isn't that appealing, especially when other cameras such as a Panasonic doesn't take the Type A.
The fastest SD card available now is a v90, and this is what I've been using. However, I don't find a SD card to be that reliable. Going with the CFexpress path seems like a better choice ? Maybe, only time will tell just how reliable a CFexpress A is. But for the mean time, the price of a CF has dropped, almost on par with a v90 SD card. This makes the CF card that much more appealing.
To be able to read a CFExpress A, you will need a separate card reader. In my case, I'd decided to go with the Lexar Professional Reader, it has both the SD slot and the CFexpress A slot. It uses USBC to connect to the PC, transfer speed is 10Gbps according to the official stat. I can only say the transfer speed is faster than the SD card, and it faster speed is always a welcome.
I can't say I'm positively thrilled using the Lexar. Once inserted, a lot of the time the computer is not reading the card. I had to unplug, plug, back and forth a few times before the icon shows up on the screen. And there are a few times it got cut off during the file transfer. To top it off, the CFexpress gets fairly warm after the file transfer.
I think the card reader has a defect, very likely it's just my bad luck. So after 2 weeks of use, I'd returned it to the seller. And a new reader is on its way.
