Manual 500mm mirror lens compatibility

Started Feb 12, 2013 | Questions thread
MikeInIndy Senior Member • Posts: 1,077
Re: Manual 500mm mirror lens compatibility

The camera does not have a full stroke aperture measuring tab, instead it only has the "MAX APERTURE SET" switch for using AF-D lenses locked at F22.  Without a full range aperture tab the camera has no way to know what aperture your lens is without a computer chip on the lens.  So it cannot read the aperture to meter.  Also if your lens is a pre-AI model it could damage the aperture switch because the aperture ring isn't notched like newer AI and later lenses to clear it.

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