Because of this, manual focusing of the picture from off the viewfinder image may be more difficult.

Again, the viewfinder image will alert you to the problem by showing you how the camcorder is seeing the scene.

The standard housing comes with a flat viewing port giving a reversed viewfinder image looking vertically down into the housing.

The viewfinder image is slightly larger.

The SLR mirror 'blacks-out' the viewfinder image during the exposure.

Selective metering measured from the central focussing area only, a circle about 7mm of the viewfinder image.

This is cheaper and lighter, but generally produces a viewfinder image of lower quality and brightness.

The twin-lens reflex camera provides both a viewfinder image and the reflected image from the actual camera lens.

As a result, the viewfinder image does not precisely match the image "seen" by the lens.

It allows the operator to have a viewfinder image equal to the recorded picture.