Sd card size - Canon PowerShot SD300 / IXUS 40 Digital Camera

Hi
Not sure by size, you mran phyical size or capacity. There are 2 phyical sizes.1) Standard SD card.2) Mirco SD card (usually used in phones) Check what size slot it is. I unsure take device to a retailer to check. If you mean data capacity size? These days most standard devices take from 32Mb upwards, check user manual or google device model specifications. The Extreme SD cards are a higher capacity. Check them out at a camera or retail store. Hope this helps. Regards Bob from OZ.

SD cards top out at 2GB, and any of them may be used with the camera. Any larger cards are SDHC cards and will not work.

Check the width of the slot for the SD card.
Most digital cameras use the standard SD card and the width of the SD card is 24 mm.
The mini SD card is 20 mm wide

The maximum size of an SD card is 2GB, and the 9FF2 will support SD cards of that size. The 9FF2 will not support SDHC cards, which start at 4GB and go up.

An SDHC card is not an SDHC card. While it fits into the same slot, it will not work unless the device is designed to also work with SDHC cards. SD cards go up to 2GB in size, SDHC cards go from 4GB to 32GB in size. Unfortunately, Vivitar seems to be a little fuzzy on the distinction between the two.
In your particular case, you should be able to use any SD card, or any SDHC card up to 16GB in size.

The A620 uses MMC and SD cards. SD cards max out at 2GB in size. Larger cards are actually SDHC or SDXC cards and will not work in the A620.

You may use any size SD card. Bear in mind that SD cards max out at 2GB. Larger cards are actually SDHC cards and won't work in the Z1.

The A520 uses SD cards. SD cards max out at 2GB in size. A microSD card in an adapter looks exactly like a SD card to the camera, and microSD cards also max out at 2GB. Anything larger is a SDHC or microSDHC card. While they will fit into the slot, they are electronically incompatible and will not work. So, the short answer is: 2GB.

You can use 1GB SD card or 2GB SD card., more than 2GB is not compatible on your Z650., Gudluck!

The maximum supported size is most likely 2GB SD Card. Cards with 4GB and more are following a new (incompatible) standard called SDHC (SD High Capacity), SDHC cards work only in devices specifically supporting SDHC. The Optio S5N uses the old SD standard where 2GB are the maximum size.