Panasonic HDC-SD20K Hi-Definition 1/6"MOS SD Card Camcorder, 16x Optical Zoom, 2.7" LCD Screen
The Panasonic HDC-SD20K Hi-Definition 1/6"MOS SD Card Camcorder features iA (Intelligent Auto) for Smart Control. Panasonic's iA helps avoid problems in difficult shooting situations by automatically making the optimal camera settings and activating certain functions. For example, iA now includes AF Tracking, a new function that "locks" on and follows a subject as it moves, so images are sharply focused and properly exposed. This technology is a huge help for everyone.

Panasonic SDR-H80S 60GB HDD/SD Card Standard Definition Camcorder, 70x Optical Zoom, 2.7" LCD Screen (Silver)
The Panasonic SDR-H80A 60GB HDD/SD Card Standard Definition Camcorder features optical 70x Ultra Zoom and Advanced O.I.S. (Optical Image Stabilization). This 70x zoom lens has the power you need to take dramatic close-ups or get remarkable shots of even distant subjects. But with long-distance zoom shots, even a tiny bit of hand shake has a huge effect on picture quality. That's where optical image stabilization comes in.