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— | photowiki:card [2023/10/09 15:29] – [SD card] ying | ||
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+ | ====== One-for-All good article on cards ====== | ||
+ | |||
+ | * http:// | ||
+ | |||
+ | |||
+ | ====== Card Type for Camera Storage====== | ||
+ | |||
+ | * most common type: SD card | ||
+ | * high end sports camera: CF card | ||
+ | * high end video camera: 2.5 inch SSD | ||
+ | * other cards: rarely used | ||
+ | |||
+ | ====== SD card ====== | ||
+ | |||
+ | **There are 3 size of SD card** | ||
+ | * **Full size SD: most common type for cameras** | ||
+ | * miniSD: rarely seen nowadays | ||
+ | * microSD: most common type for slim compact cameras and smart phones | ||
+ | |||
+ | **We are mainly talking about Full size SD card From Here;** | ||
+ | |||
+ | **SD card has 3 property to consider when choosing** | ||
+ | - capacity: how many GBs of storage | ||
+ | * category label based on capacity: | ||
+ | * SD: 1-2 GB | ||
+ | * SDHC: 4-32 GB | ||
+ | * SDXC: 64-128 GB and upto 2TB | ||
+ | - Maximum Read/ | ||
+ | * category label based on max R/W speed: (Mbps=mega bit per seconds, MBps = mega Byte per second = 8 Mbps) | ||
+ | * normal lower uhs-i and lower cards use mbps (bit) to make number looks bigger, each gen speed also different | ||
+ | * while higer uhs-i and uhs-ii card use MBps (Byte) as they are next gen card fast | ||
+ | * R 280MB/s W 250MB/s : Video Pro | ||
+ | * R 95MB/s W 90MB/s : Photo Pro | ||
+ | * R 90MB/s W 60MB/s : Photo Burst Good | ||
+ | * R 90MB/s W 40MB/s : Photo Burst Good | ||
+ | * R 80MB/ | ||
+ | * R 48MB/ | ||
+ | * below : Low | ||
+ | - Example chart : | ||
+ | * for 4K video, 100mbps, = 12.8MBps | ||
+ | * for 4k video, 60mbps, = 7.5MBps | ||
+ | * for FHD video, 28mbps, = 3.5MBps | ||
+ | * so V30 card and 30MBps write is more than enough for common 4k video and below | ||
+ | * while 60MP high res sensor burst shots will require far more write speed than video. | ||
+ | |||
+ | * uhs-1 limit: 104MBps | ||
+ | |||
+ | ^ name ^ video rate ^ Read ^ Write ^ price (2023) | | ||
+ | | SandDisk Extreme U3 UHS-I | V30 | 170MBps | 80MBps | 64GB = 13sgd | | ||
+ | | SandDisk Extreme U3 UHS-I | V30 | 180MBps | 90MBps | 128GB = 27sgd | | ||
+ | | SandDisk Extreme U3 UHS-I | V30 | 180MBps | 130MBps | 256GB = ?sgd | | ||
+ | | SandDisk Extreme Pro U3 UHS-I | V30 | 170MBps | 90MBps | 64GB = 15sgd | | ||
+ | | SandDisk Extreme Pro U3 UHS-I | V30 | 200MBps | 90MBps | 64GB = 18sgd-19.5 | | ||
+ | | SandDisk Extreme Pro U3 UHS-I | V30 | 200MBps | 90MBps | 128GB = 32sgd-35 | | ||
+ | | SandDisk Extreme Pro U3 UHS-I | V30 | 200MBps | 140MBps | 256GB = 55sgd-72 | | ||
+ | | SandDisk Extreme Pro U3 UHS-I | V30 | 200MBps | 140MBps | 512GB = 125sgd-139 | | ||
+ | ^-^ | ||
+ | ^-^ | ||
+ | | Sandisk Extreme Pro SDXC, UHS-II, 64GB | ? | 280MBps | 250MBps | 64GB | | ||
+ | | Sony E 64GB UHS-II | V30 | 270MBps | 70MBps | 64GB=25sgd | | ||
+ | | Sony E 128GB UHS-II | V60 | 270MBps | 100MBps | 128GB=60sgd | | ||
+ | | Sony M 64GB UHS-II | V60 | 277MBps | 150MBps | 64GB=35sgd | | ||
+ | | Sony M 128GB UHS-II | V60 | 277MBps | 150MBps | 128GB=92sgd | | ||
+ | | Sony M 64GB UHS-II Tough | V60 | 277MBps | 150MBps | 64GB=63sgd | | ||
+ | | Sony M 128GB UHS-II Tough | V60 | 277MBps | 150MBps | 128GB=99sgd | | ||
+ | | Sony G 64GB UHS-II Tough (for 8K) | V90 | 300MBps | 299MBps | 64GB=138sgd | | ||
+ | | Sony CFexpress 128GB tough | ? | 1700MBps | 1480 MBps | 128GB=306sgd | | ||
+ | |||
+ | |||
+ | - Minimum video recording performance: | ||
+ | * category label based on Minimum write speed (MB/s) and its corresponding Bus Mode (old to new): | ||
+ | * Class 2,4 (2-4MB/s): Normal speed Bus (DVD resolution recording) | ||
+ | * Class 6 | ||
+ | * Class 10 (10MB/s ): High Speed Bus (High Quality HD-FHD resolution recording) | ||
+ | * UHS 1 | ||
+ | * UHS 3 | ||
+ | * V30 | ||
+ | * V60 | ||
+ | * V90 | ||
+ | * category label based on its Bus Mode: | ||
+ | * Normal Speed bus: 12.5MB/s | ||
+ | * High Speed bus: 25 MB/s | ||
+ | * UHS-I bus: 50MB/s - 100MB/s | ||
+ | * UHS-II bus: 150MB/s - 300MB/s | ||
+ | |||