Lens · zoom
SMC Pentax 67 55-100mm f/4.5
Pentax · 1998-c.2009
Discontinuedmedium-format
The SMC Pentax 67 55-100mm f/4.5 is the wide-to-standard zoom for the Pentax 67 system, covering roughly 28-50mm equivalent on 35mm with a constant f/4.5 aperture. SMC Pentax 67 55-100mm f/4.5: 11 elements in 9 groups, 8 aperture blades, 0.6m minimum focus, 95mm filter thread, 1210g.
- Focal length
- 55-100mm
- Max aperture
- f/4.5
- Mount
- Pentax 67
- Format
- medium-format
- Elements / groups
- 11 / 9
Known for
- Travel
- Documentary
- Events
Considerations
- Slower than primes
- Large and heavy
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 control4, level 4 of 5
Distortion control4, level 4 of 5
Bokeh: Good for zoom
Rendering: Versatile
Colour: Warm Pentax
Silverlog's editorial rating, 1 to 5; five is best. Not lab-measured.
Common issues
- Zoom creep can develop
Buying guide
One of two zooms for the 67 system (with the 90-180mm f/5.6). Check zoom mechanism.
Specifications
| Mount | Pentax 67 |
| Focal Length | 55-100mm |
| Max Aperture | f/4.5 |
| Min Aperture | f/32 |
| Aperture Blades | 8 |
| Min Focus | 0.6m |
| Filter Size | 95mm |
| Weight | 1210g |
Optical design
| Formula | unknown |
| Elements | 11 |
| Groups | 9 |
| Coating | SMC (Pentax) |
Pricing
- Typical used price (US market)
- $500 - $850
- Mint
- ~$1000
Indicative, no dated source.