'The camera includes 32GB of built-in flash memory and supports SDHC cards, and it encodes the video as AVCHD files with data rates up to 24 mbps, the format's maximum capability. '
'The camcorder earned an audio score of Good, with noticeably better clarity and volume than rival camcorders offered. '
'impressively deep and professional manual controls'
'It's beautifully done overall, and Canon gets a tip of the hat for this new design, although nothing beats the accuracy of the joystick (it may not be as cool, but it works!). '
'Generally well-designed interface'
'The HF S21 also includes an electronic viewfinder, and it is Canon's only new camcorder to include such feature. '