> Question about the 300 F4. I am using an 
        > F70 with this lens. Am I correct that in 
        > order to use this lens on manual, BOTH the 
        > camera AND lens have to be switched to M?

        That's correct.  The switch on the lens just 
        connects/disconnects the lens' focusing ring.
        Internally the lens is always hooked up to 
        the camera's AF drive.

        Don



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