Panasonic on Sunday revealed its newest AVCCAM professional camcorder, the AG-HMC150, at the NAB show in Vegas. The camera uses the industry's newest compression standard, AVCHD, to record video onto SD cards exclusively. Based on the standard-definition AG-DVX100, the HMC150 can record 1080 and 720 HD video at average speeds up to 21 Mbps. Four re
