Nikon Nikkor 24mm f/2.8 Ai-S - Nikon F Mount

The Nikkor 24mm f/2.8 Ai-S is the final manual-focus evolution of Nikon's popular 24mm wide-angle lens. Like its predecessor, it features Close Range Correction (CRC) to maintain sharpness at close distances. The Ai-S version features a shorter focus throw than the earlier Ai model, allowing for faster focusing, and includes the linear aperture movement required for shutter-priority and programmed exposure modes on compatible Nikon film bodies. Check the focus action for any 'play' or looseness, which can occur with heavy use. The CRC mechanism involves moving internal elements, so we verify that there is no internal rattling. We inspect the aperture blades for oil and the rear mount for signs of frequent mounting. SDS confirms the glass is free from the scratches often found on these wide-angle lenses due to their protruding front elements.