In order to complement its HD camcorders, Panasonic has announced two standard-definition cameras, the SDR-SW20 and SDR-S7. The SW20 is dustproof, waterproof to a depth of five feet, and also shock-proof, albeit only to a height of four feet. It records to SD and SDHC cards up to 16GB in size, which at peak capacity allows for 13 hours and 20 min
