In camcorder terminology, it's called picture resolution . A viewfinder is an eyepiece. Some viewfinders show images in full-color, others work only in black and white. Camcorders today can come with either a viewfinder or a view screen, or both. View screens are more convenient and worth the extra money.
Correct lighting is a necessity for good video shoots.
This feature automatically adjusts the color and contrast when you're recording in dark situations. Lithium Ion batteries are the best choice. Lead acid batteries are longer lasting but don't supply full power for that entire time. Most built-in camcorder microphones are either mono or stereo, and are fine for the majority of recording situations. For recording public speakers or narration, many cameras include connections for higher quality accessory microphones.