Hello;
I E-mailed Pentax for their input;
You should be able to use most SD (SDHC) cards in your camera. However, Pentax does not guarantee compatibility with all SD/SDHC cards and some specific cards may be incompatible. The K20D has been tested for compatibility with the following cards: Panasonic - SD Memory Cards with capacities between 128 MB and 2 GB
- SDHC Memory Cards with capacities between 4 GB and 16 GB
Toshiba SD Memory Cards with capacities between 128 MB and 2 GB - SDHC Memory Cards with capacities between 4 GB and 16 GB
- SanDisk SD Memory Cards with capacities between 128 MB and 2 GB
- SDHC Memory Cards with capacities of 4 GB and 8 GB
* As of January 2008: The information above is given for the convenience of customers and does not guarantee complete compatibility with the K20D
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