My Favorite Graflex. The Century Professional was produced in 1966 with a gray body and a black bellows. It featured a much better lens selection than had been previously available in the less expensive Century line. This example has a Zeiss Tessar in a Compur shutter. This camera was Singers attempt to compete in the medium format market. It used a medium format roll film back. I sold this camera in 2016 for $650, a good price.