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.