Canon Servo EE Finder for use with Canon F1 old style.( Full aperture metering EE Servo Finder).

The servo EE Finder is a viewfinder provided with an automatic exposure control which works by means of an electronic circuit. Powering a servo motor , one of the features of the F-1 system is the practical application of available electronic technology on  its F-1 as accessory’s. Nikon s F2  also had a similar system with its DP-2 and DP-3  and attachment of the DS EE motor attachment.

The Aperture Control  EE coupler controls the preset aperture position of the FD lens from the body of the F-1 because the mechanism of the diaphragm of the FD lens is completely cut from the preset aperture ring on the outside of the camera. When the ring is set green (EE) mark. The servo motor drives the aperture signal lever to preset correct exposure while the diaphragm remains fully open. Since the servo motor can yield quite a strong drive , a very smooth operation can be achieved. The servo EE has a centre weighted average meter since such metering pattern is preferred to automatic aperture control during that period as one noticed. The CdS photocells are located on both sides of the eyepiece.

This set contains of :

Servo EE finder  nr 24337

Coupler.

Power cable.

Power source with Canon batterie case.