This is a telephoto lens manufactured by Nikon, compatible with Nikon’s AI (Aperture Indexing) system. The design incorporates a 200mm focal length with a maximum aperture of f/4. This particular lens is a manual focus lens, designed for use with Nikon SLR cameras that support the AI aperture coupling system, enabling accurate metering. An example usage would be portrait photography or capturing distant subjects where a shallow depth of field is desired or magnification is needed.
Its significance stems from its combination of relatively compact size, moderate telephoto reach, and respectable maximum aperture. It allowed photographers to achieve pleasing subject isolation and capture images in lower light conditions compared to longer, slower telephoto lenses. Historically, it represents a period when Nikon was refining its lens designs for enhanced usability and metering accuracy with its camera bodies. The AI system itself was a critical improvement over previous aperture coupling methods.
