What is the difference bewteen Non-AI and AI/AIS Nikon lenses?
The non-ai lenses are older than ai/ais, what is the difference? Will non-ai work on a Nikon FM-10? And will it work on a D5000 on M mode with lose of light meter?
Added (1). Ok I found out Non-AI lenses will work on the FM-10 but metering will not be accurate and conversion is recommended. For the D5000 it will work just no metering which I was expecting. I don't know about the converting non-ai to ai so I shouldn't get non-ai lenses and get ai/ais lenses.
The NON-AI lenses are missing a secondary (actually a new primary) aperture indexing or coupling ridge on bottom of aperture ring.
Newer cameras that were designed to use this new AI standard, can only use a NON-AI lens that has been converted.
The entry level Nikon dSLR cameras can't meter with any of the manual focus Nikkor lenses. The only cameras that can are the D7000 or higher (D200, D300, D3 and D4) cameras.
Here is a complete list of cameras and lenses and how compatible they are with each other
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