Lens · prime
Nikkor 85mm f/1.8 (K, pre-AI)
Nikon · 1975-1977
Discontinued35mm
Nikkor 85mm f/1.8 (K, pre-AI): 6 elements in 4 groups, 6 aperture blades, 0.85m minimum focus, 52mm filter thread, 430g.
- Focal length
- 85mm
- Max aperture
- f/1.8
- Mount
- Nikon F
- Format
- 35mm
- Elements / groups
- 6 / 4
Known for
- Portraits
- Events
- Available light
- General telephoto
Considerations
- Pre-AI: needs AI conversion for many bodies
- Manual focus and aperture (K-type: needs Ai conversion or a compatible body for metering)
Optical characteristics
Silverlog's editorial rating: our own judgement, not measured data.
Sharpness (wide)4, level 4 of 5
Sharpness (stopped)5, level 5 of 5
Contrast4, level 4 of 5
Flare resistance4, level 4 of 5
CA control4, level 4 of 5
Vignetting control3, level 3 of 5
Distortion control5, level 5 of 5
Bokeh: Pleasant, slightly nervous
Rendering: Sharp, good contrast
Colour: Neutral
Silverlog's editorial rating, 1 to 5; five is best. Not lab-measured.
Common issues
- Focus ring wear
- Aperture blade oil
Buying guide
Check focus smoothness. Check whether it has been AI-converted.
Specifications
| Mount | Nikon F |
| Focal Length | 85mm |
| Max Aperture | f/1.8 |
| Min Aperture | f/22 |
| Aperture Blades | 6 |
| Min Focus | 0.85m |
| Filter Size | 52mm |
| Weight | 430g |
Optical design
| Formula | Double Gauss |
| Elements | 6 |
| Groups | 4 |
| Coating | NIC (Nikon) |
Pricing
- Typical used price
- £200 - £350
- Mint
- ~£450
Indicative, no dated source.