Will the winner of the CFexpress card be Type A or Type B?
페이지 정보
본문
Sony is the only company that uses CFexpress Type A cards as recording media, but for some reason, many users of the Sony α series use SD UHS-II cards, and Type A cards are in the minority. On the other hand, many users, including Canon and Nikon, use Type B, which is the same CFexpress. One reason why Type A cards are not used is because they are expensive. Type A cards are positioned as the successor to SD cards, but the price difference between them and SD UHS-II is too large. In particular, the price of a large-capacity Type A card is enough to buy a popular mirrorless camera. The main reason why they are so expensive is that Type A is only used in Sony cameras, so it is difficult to achieve economies of scale (mass production effects). Another reason is that there are few manufacturers that make Type A. Another reason is due to the transfer speed and the associated buffer clogging. When shooting ultra-high-speed continuous shots or high-resolution RAW videos, the difference in transfer speed between Type A and Type B becomes apparent. Roughly speaking, Type B has twice the transfer speed of Type A. However, the difference between Type A and Type B is not so noticeable in normal shooting. That is why SD UHS-II continues to be used. However, the transfer speed of SD UHS-II in actual products is already approaching the theoretical limit of about 312MB/s, and if video becomes more popular in the future, SD UHS-II will struggle. This is because VPG400, the standard for high-speed video shooting, has a minimum guaranteed transfer speed of 400MB/s. For this reason, Sony has equipped almost all of its recent α series mirrorless cameras with Type A and SD UHS-II compatible slots. However, the transition from SD UHS-II to Type A is unlikely to progress any time soon. On the other hand, there is a possibility that the interface standard for CFexpress cards will be in line with the next-generation PCIe4 standard, rather than PCIe3, and at this year's CP+2023, a Taiwanese manufacturer exhibited a PCIe4 CFexpress card (measured at over 3000MB/s, theoretical value is 4000MB). In the future, Type A and Type B recording media will likely coexist, but the superiority of Type B is unlikely to be shaken.
link 0url 0 link 1url 1 link 2url 2 link 3url 3 link 4url 4 link 5url 5 link 6url 6 link 7url 7 link 8url 8 link 9url 9 link 10url 10 link 11url 11 link 12url 12 link 13url 13 link 14url 14 link 15url 15 link 16url 16 link 17url 17 link 18url 18 link 19url 19 link 20url 20 link 21url 21 link 22url 22 link 23url 23 link 24url 24 link 25url 25 link 26url 26 link 27url 27 link 28url 28 link 29url 29 link 30url 30 link 31url 31 link 32url 32 link 33url 33 link 34url 34 link 35url 35
- 이전글Visit luxcoke.com Shamakhi buy coke 24.10.25
- 다음글Responsible For An Wall Mounted Electric Fires Budget? 12 Top Notch Ways To Spend Your Money 24.10.25
댓글목록
등록된 댓글이 없습니다.