Hello John, Perhaps there is something to dirty contacts on the lens mount?
-- Best regards, Bruce Tuesday, June 28, 2005, 10:38:19 AM, you wrote: >> i've been thinking over Bruce's comments and i think i do the same >> thing. i mount the lens with the body in AF mode and twirl the focus >> run until it locks. the lens is usually in MF mode, but it may work >> in AF mode too, depending on the lens. JW> OK I've had a play. If you mount the lens on the camera in AF it works JW> perfectly well, if you then switch to MF and re-focus when you switch back to JW> AF there's no response...............until you manually focus the lens JW> accurately on the subject then if you switch back to AF it works perfectly JW> again. All this is with the camera body set on AF, the 24mm f/2 works fine no JW> matter what. It's driving me nuts 8-) JW> John
