Lens · prime
SMC Pentax 67 55mm f/4
Pentax · 1986-c.2009
The SMC Pentax 67 55mm f/4 is the moderate wide angle for the system, equivalent to about 27mm on 35mm format. SMC Pentax 67 55mm f/4: 8 elements in 7 groups, 8 aperture blades, 0.35m minimum focus, 77mm filter thread, 725g.
- Focal length
- 55mm
- Max aperture
- f/4
- Mount
- Pentax 67
- Format
- medium-format
- Elements / groups
- 8 / 7
Known for
- Landscapes
- Environmental portraits
- Architecture
- Interiors
Considerations
- Some vignetting wide open
- Moderate distortion
Optical characteristics
Silverlog's editorial rating: our own judgement, not measured data.
Bokeh: Naturalistic
Rendering: Wide with medium format depth
Colour: Warm Pentax
Silverlog's editorial rating, 1 to 5; five is best. Not lab-measured.
Versions
Super-Multi-Coated Takumar/6x7 55mm f/3.5
1969-1979
f/3.5, 8 elements/7 groups, 100mm filter, 920 g
Different optics
smc PENTAX-6x7 55mm f/4
1979-1986
9 elements/8 groups, 0.4 m focus, 615 g
Different optics
smc PENTAX 67 55mm f/4
1986-c.2009
8 elements/7 groups, 0.35 m focus, 725 g
Third optical design
Three different optical designs were sold as the 6x7/67 55mm.
Common issues
- Check for fungus
Buying guide
Check optics carefully.
Specifications
| Mount | Pentax 67 |
| Focal Length | 55mm |
| Max Aperture | f/4 |
| Min Aperture | f/22 |
| Aperture Blades | 8 |
| Min Focus | 0.35m |
| Filter Size | 77mm |
| Weight | 725g |
Optical design
| Formula | Retrofocus |
| Elements | 8 |
| Groups | 7 |
| Coating | SMC (Pentax) |
Pricing
- Typical used price (US market)
- $300 - $500
- Mint
- ~$600
Indicative, no dated source.