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Setting up a Non-CPU lens on Nikon DSLR Camera.
How to set up Non-CPU lens on Nikon DSLR cameras using legacy NIKKOR lenses with the Nikon DSLR camera.
For Non-CPU lenses to communicate with some of the Nikon camera bodies so the camera can meter and exposure you’ll need to provide the camera with some lens data – lens focal length and maximum aperture.
The only exposure modes that will work with NON-CPU lenses are Aperture Priority (A) or Manual exposure (M) modes.
This will allow you to gain access to a variety of CPU lens functions when using a non-CPU lens.
Nikon DSLR cameras will allow you to store lens data for up to nine non-CPU lenses.
First, attach the non-Ai lens to the camera, then go into the set-up menu and select Non-CPU lens data.
Choose a lens and enter the focal length and aperture.
If the correct focal length is not listed, choose the closest one that is greater than that of the lens.
It’s very easy using old manual focus lenses with the Nikon d3000 series and D5000 series camera, all you need to do is put the lens on the camera and change the setting to (M) manual, and start shooting.
Everything will need to be done manually nothing can be automatic (only white balance can be on auto) it’s like in the old days with film cameras.
Here is a video from Matt Granger that explains how to set up Non-CPU lens on Nikon DSLR camera.