The Contaflex ads did, however, promise a bit more than the camera actually delivered. The split image spot at the center of the viewing field makes it easy to focus precisely, but the only part of the view which actually shows the focus at full aperture is a small doughnut around the central spot. The rest of the screen shows the image nearly fully focused. For the 'fifties tourist shooting chromes under the bright sun at small apertures, there was no evident problem. In low light and at large apertures, however, there is quite a difference between what is presented in the viewfinder and what the film sees.
Focusing nuances aside, the coated Tessar f2.8 lens always delivers nice images to the film, and the Contaflex is still one of my great favorites.