Sony Alpha Forum

You will see approximately NO difference when shooting stills - if you shoot lossy compressed RAW at full speed you might start to build a buffer backlog, and that will clear a little faster with CFeA cards like the Lexar Gold or Sony Tough. But it is marginal. You WILL see a difference if your shoot 1000+ images and download them with a fast reader to a local SSD - they will download much faster than even the fastest SDs. But that’s a marginal reason to get them (unless you are in the habit of shooting thousands of images - I do that more on the A1 for obvious reasons) The CFeA cards are pretty tough - I have some Sony and some Lexar, all 160GB - but I mainly got them for the A1 - I use them in the A7RV because I already have them. I don’t think you really need CFeA cards (buy them if you want, though). I’d be tempted to get a couple of 128GB or 256GB Sony Tough G SD cards instead. The G cards are worth it because they enable things like high frame rate 4k, and they download faster. Basically, I’d recommend fast UHS-2 SD cards (300 read / 299 write is good) over slower UHS-1 cards. Whatever you do, don’t buy 90MB/s cards! I like the Tough cards, but like you said the Lexar Gold are much cheaper in CFeA - I bought a couple to try them, and to encourage Sony to drop their price!

I have been shooting Sony for 5 years (A7r3,  A73, A6400).  Taking delivery of the A7r5 in a few weeks.  I will NEVER (never say never!), shoot 8k and am primarily a still pro shooter.   I plan to get 2, Lexar Professional 160GB CFexpress Type A Gold Series cards Up to 900MB/s.  The Sony tough cards with the same spec are close to $200 more for a pair.  IS THIS speed spec overkill considering I'm shooting primarily still, and occasional 4K videos?  Thanks in-advance for any replies. 

The Sigma 105mm macro lens DG DN Art is on Ver.02 2023.01.26. Though I haven't upgraded that lens, I have upgraded a couple of other recent Sigma lenses and it is quite simple using the Sony camera and detailed on the Sigma website. Do a quick Google search and you will find the information you seek. Link: https://www.sigma-global.com/en/lenses/a020_105_28/?tab=support&local=firmware

This IS the date sequence version! Look at the last 5 digits of the folder name. On the first folder those last five digits are 30313, and the date is 2023-03-13 - and look at the last first digits of that date: 30313. You can see that all the other folders match that pattern. It's the last digit of the year, two digits for the month, two digits for the day. I think having just the last digit of the year is enough. Even if you own the camera for ten years, you can glance at the dates inside the folder to disambiguate them. And it starts with a folder number, just in case it overflows one folder and had to create another one for the same date (you know, when you shoot 10 000 JPEGS on a single day!)

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