The D-20 also accepts a traditional film style video assist system, sharing the image available through the optical viewfinder.

In addition to the ground glass, a simple optical viewfinder was often fitted.

It's a joy to use, because you're less removed from your environment than you would be peering through the optical viewfinder.

For many sports and press applications optical viewfinders gave too small an image.

For example, a digital still camera may have an optical viewfinder and an electronic one.

This can be particularly helpful when the lighting conditions are too dark for an optical viewfinder.

Most lack an optical viewfinder; you frame your photos using the screen.

The optical viewfinders provided with some video and digital cameras are not safe.

He also made a bright-line optical viewfinder for the camera.

Lesser models may use optical viewfinders, which only indicate where you've aimed the camera.