Nikon 200mm F4 AI not working with D7000

Started Aug 16, 2014 | Discussions thread
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Duckie Senior Member • Posts: 2,184
Re: Nikon 200mm F4 AI not working with D7000

Work the lever to see if it works smoothly. Old lenses can have glue-like apertures. Most important thing to test is whether the camera shows different aperture values if you turn the lens' aperture ring. If it changes, then probably is the oil (or the spring inside the lens; but one could lead to the other!)

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