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My 35mm F/1.4 Manual Focus Button Appears Broken?


Western PA, US
3290 posts

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spiritualized67 Moderator Awarded for his high level of expertise in various areas, most notably in Street & Landscape Photography Nikonian since 01st Mar 2007
Mon 13-May-13 04:07 PM

A rudimentary question for sure - but I just want to make sure I'm not overlooking something obvious.

My 35mm F/1.4 still focuses, even when the lens is switched to "M". A typical scenario involves focusing with Live View using a cable release cord. Once it acquires focus, I switch the lens to manual to lock in.

I know it's not the cable release, because even the camera shutter release button will cause the camera to focus when the lens is on M (and it shouldn't). It will focus lock when I switch the camera to Manual servo focus, as it should.

I'm thinking the lens AF/M switch is defective - as my 70-200 and 24-70 lock focus when I switch to M. Am I missing anything? Just checking.