The Contax AE Prism Finder MF-1 is a 90 degree, eye level finder which uses two types of metering systems. A Metering Switch Lever allows the user to choose which system is active. Center-weighted average metering which has excellent characteristics for general purpose photography and spot metering which is suited to small area readings particularly in contrasty situations. Spot metering takes place in an area having a 5.5mm diameter in the center of the focusing screen and usually operates along with the AE Lock mechanism.
The MF-1 Finder features a dedicated hot shoe, an eyepiece shutter for long exposures as well as a built-in variable diopter in strengths from +1 to -2. The internal display shows Battery Warning, Frame Counter, Self-Timer Countdown, Bracketing, Metering Mark, Flash Ready indication, Focus Mark, Aperture, Shutter Speed and Exposure Mode. It has a 95% field of view and .8x magnification.