Based on the provided information, an "AI lens" refers to a type of lens that's part of a camera system incorporating automatic indexing between the lens and the camera body. This system simplifies and speeds up the process of changing lenses.
Specifically, the Ai system automatically indexes the lens with the camera via a ridge on the rear edge of the aperture ring, which enables much easier and quicker lens mounting and changing.
Here's a breakdown:
- Automatic Indexing: The key feature of an AI lens is its ability to automatically communicate aperture information to the camera.
- Ridge on Aperture Ring: This ridge physically interacts with the camera body to transmit data.
- Faster Lens Changes: The automated indexing process streamlines the mounting and changing of lenses.
