About Focus Function

When combined with the 645D or 645Z, autofocus operation is performed.

SDM

= Autofocus driven by the supersonic motor in lens body

DC

= Autofocus driven by the DC motor in lens body

Body AF

= Autofocus using the motor in the camera body

*The equivalent mm in 35mm film format for the focal length of the 645 lens can be calculated by multiplying the focal length by 0.8.

*The rear converters A645 1.4X and 2X do not support the autofocus function. Also, the aperture value displayed in the viewfinder may vary depending on the combined lens.

*When mounted a lens which is installed SDM motor or DC motor, Film645 (645N/645 N II) can only focuses manually.