An AI-P lens is a manual lens that has a CPU (basically a computer) built into it; which is used to transfer metering data from the lens to the camera. An AF-I lens uses a built-in D/C coreless focus drive motor for speedy autofocus operation and were Nikon's first lenses to offer the now popular M/A focusing mode.
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1. Incident metering for Ambient & Flash 2. Measuring LED,HMI and Fluorescent light 3. Measures Tungsten, Flash and Natural Light 4. ...
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