Nikon's fast manual 105mm — f/1.8 Ai-S, faster than the legendary f/2.5 portrait prime.
The Nikon Nikkor 105mm f/1.8 Ai-S is the fastest 105mm in Nikon's manual-focus lineup — f/1.8 providing more light and shallower DOF than the renowned 105mm f/2.5. A premium portrait lens for the film era.
Optically very good — sharp from f/2.8 with dramatic shallow DOF at f/1.8 that the f/2.5 cannot match. The f/1.8 provides a brighter viewfinder and more subject separation. Manual focus with Nikon precision helicoid.
Nikon F mount with 62mm filter thread. Approximately 540g. Ai-S coupling for all Nikon compatibility. Full-frame coverage. The fastest manual 105mm Nikon made. Minimum focus distance approximately 100cm.
Available used at professional prices — faster than the f/2.5 commands a premium. The 105mm f/2.5 Ai-S (ID 1629) is more common and cheaper. Works on Z via FTZ. For those specifically wanting f/1.8 speed at 105mm manual-focus.