Nikkor 50mm f/1.2 AI-S
Nikon · 1981-present
The fastest Nikkor standard lens. A mechanical marvel with exceptionally smooth bokeh from its 9-blade aperture. Dreamy wide open with a distinctive glow, becoming razor sharp from f/2.8. A cult favourite for portraits and low light.
Known for
- Low light photography
- Portraits
- Subject isolation
- Creative bokeh effects
Considerations
- Soft and dreamy wide open
- Significant coma at f/1.2
- Heavy for a 50mm
- Expensive compared to f/1.4
Optical Characteristics
Bokeh: Exceptionally smooth, 9-blade circular highlights
Rendering: Dreamy wide open, razor sharp stopped down
Color: Neutral
Versions
AI (1978)
1978-1981
7 aperture blades, AI coupling
First version, 7 blades
AI-S (1981)
1981-present
9 aperture blades, orange aperture marking
Current production, improved bokeh
The AI-S version's 9-blade aperture produces significantly smoother bokeh than the 7-blade AI version. Still manufactured new by Nikon.
Common Issues
- Oil on aperture blades
- Focus ring wear
- Coating scratches on front element
Buying Guide
Check aperture blades for oil contamination - hold to light and look for sticky movement. The 9-blade AI-S is worth the premium over the 7-blade AI. New copies available from Nikon.
Specifications
Optical Design
Pricing
Typical used price
Mint: ~£700
New from Nikon ~£650. AI versions cheaper.