Lens · prime
SMC Pentax-A* 85mm f/1.4
Pentax · 1984-1989
Rare35mm
SMC Pentax-A* 85mm f/1.4: 7 elements in 6 groups, 9 aperture blades, 0.85m minimum focus, 67mm filter thread, 555g.
- Focal length
- 85mm
- Max aperture
- f/1.4
- Mount
- Pentax K
- Format
- 35mm
- Elements / groups
- 7 / 6
Known for
- Portrait photography
- Available light
Considerations
- Heavy and large
- Requires careful focusing at f/1.4
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
Contrast5, level 5 of 5
Flare resistance5, level 5 of 5
CA control4, level 4 of 5
Vignetting control3, level 3 of 5
Distortion control5, level 5 of 5
Bokeh: Legendary 9-blade rendering
Rendering: Exceptional portrait character
Colour: Rich, flattering
Silverlog's editorial rating, 1 to 5; five is best. Not lab-measured.
Common issues
- Focus ring stiffness
- Aperture blade oil
Buying guide
Check all mechanisms carefully. The MH-RA hood is a separate accessory and often missing.
Specifications
| Mount | Pentax K |
| Focal Length | 85mm |
| Max Aperture | f/1.4 |
| Min Aperture | f/22 |
| Aperture Blades | 9 |
| Min Focus | 0.85m |
| Filter Size | 67mm |
| Weight | 555g |
Optical design
| Formula | Double Gauss |
| Elements | 7 |
| Groups | 6 |
| Coating | SMC (Pentax) |
Pricing
- Typical used price
- £600 - £1000
- Mint
- ~£1400
Indicative, no dated source.