CHANGING THE VIEWFINDER
In addition to the F2SB Photomic finder included with the camera, six other interchangeable viewfinders are available. To remove the F2SB Photomic finder to mount one of the other units, press the finder release lever inward and rotate toward the front (this action releases the mounting clamps); then , depress the finder release button at the rear of the camera body and lift the finder out of the camera.
To attach a viewfinder other than a Photomic-type model, set it in position and press down firmly until it clicks and locks into place on the camera.
To attach a Photomic-type model (including the F2SB Photomic finder included with the camera), first set the aperture ring of the lens (if mounted) to the maximum aperture setting; then, gently position the finder on the camera and firmly press it down until it clicks and locks into place (see Photo A) . Once in place, turn the finder's shutter-speed selector left or right until it engages with
the camera's shutter-speed dial and the two can be(B) turned in tandem (see Photo B). Lastly, index the lens'
aperture ring with the finder as described in "Changing the Lens" on page 38.