Nikon's classic AI 135mm telephoto prime — a sharp and compact manual focus portrait lens.
The Nikon Nikkor 135mm f/2.8 AI is a manual focus telephoto prime from Nikon's AI-era lineup. The 135mm focal length was one of the most popular telephoto choices in the film era, offering useful reach for portraits, candid photography, and moderate telephoto compression. The f/2.8 aperture provides adequate speed for subject isolation.
Optical performance is very good. Sharpness is excellent from f/2.8 with minimal improvement when stopping down — this lens is genuinely sharp wide open. Chromatic aberration is well-controlled. Bokeh is pleasant with the relatively long focal length providing natural background separation. A well-proven optical design that remains competitive for portraiture.
Nikon F mount, AI specification with manual focus. Filter thread is 52mm. Weight is approximately 425 grams — compact for a 135mm lens. Build quality is excellent with all-metal construction and a smooth, precise focus ring. The AI coupling allows full metering on compatible Nikon bodies. Also available in AI-S specification with minor improvements.
Common and affordable on the used market. Check for smooth focus action and clean optics. An excellent portrait lens for Nikon film shooters and adapts well to mirrorless via F-mount adapters. The 135mm focal length has become less popular in the digital era, replaced by 85mm and 105mm, making these lenses underpriced for their optical quality.