Start with the camera model
Search the camera model plus "manual" and look for the storage section. If you already have the camera, open the card door and read the label near the slot.
Common card types
- SD: very common on compact cameras. Older models may only accept small SD cards.
- SDHC: common on later compact cameras. A 16GB or 32GB SDHC card is often a safe beginner choice when supported.
- SDXC: newer and larger. Many vintage cameras do not support it, even if the card physically fits.
- Memory Stick / Duo / PRO Duo: common on Sony Cyber-shot cameras. Match the exact size and format listed in the manual.
- xD-Picture Card: used by some Olympus and Fujifilm cameras. These cards can cost more than expected.
- CompactFlash: found in some older high-end compacts and DSLR-style cameras.
- SmartMedia: found in some very old cameras. Check carefully before buying one.
Simple buying advice
If your camera supports SDHC, start with a reliable 16GB or 32GB SDHC card. If it only supports original SD, look for a smaller card. If it uses Sony Memory Stick, xD, CompactFlash, or SmartMedia, buy the matching card and a reader that supports it.
Why a card reader matters
A reader lets you move photos to a phone or computer without hunting for an old camera cable. For phone transfer, buy a USB-C or Lightning reader. For a laptop, buy USB-C or USB-A to match your computer.