Lens · prime
SMC Pentax-M* 67 400mm f/4 ED [IF]
Pentax · 1986-c.2009
Discontinuedmedium-format
Roughly equivalent to 200mm on 35mm format. SMC Pentax-M* 67 400mm f/4 ED [IF]: 10 elements in 10 groups, 9 aperture blades, 2.8m minimum focus, 67mm filter thread, 3700g.
- Focal length
- 400mm
- Max aperture
- f/4
- Mount
- Pentax 67
- Format
- medium-format
- Elements / groups
- 10 / 10
Known for
- Wildlife
- Sports
- Nature
Considerations
- Heavy
- Tripod required
Optical characteristics
Silverlog's editorial rating: our own judgement, not measured data.
Sharpness (wide)5, level 5 of 5
Sharpness (stopped)5, level 5 of 5
Contrast5, level 5 of 5
Flare resistance4, level 4 of 5
CA control5, level 5 of 5
Vignetting control4, level 4 of 5
Distortion control5, level 5 of 5
Bokeh: Extreme compression, ED quality
Rendering: Professional telephoto quality
Colour: Neutral with ED correction
Silverlog's editorial rating, 1 to 5; five is best. Not lab-measured.
Common issues
- Check ED element for haze
Buying guide
Check optics carefully.
Specifications
| Mount | Pentax 67 |
| Focal Length | 400mm |
| Max Aperture | f/4 |
| Min Aperture | f/45 |
| Aperture Blades | 9 |
| Min Focus | 2.8m |
| Filter Size | 67mm |
| Weight | 3700g |
Optical design
| Formula | Telephoto |
| Elements | 10 |
| Groups | 10 |
| Coating | SMC (Pentax) |
| Special | ED glass, internal focusing |
Pricing
- Typical used price (US market)
- $1500 - $2500
- Mint
- ~$3000
Indicative, no dated source.