smc Pentax 67 120mm F/3.5 Soft
Standard prime lens • Film era • Discontinued
- Announced:
- · April 1988
- Production status:
- ● Discontinued
- Country of design:
- · Japan
- Original name:
- · SMC PENTAX 67 SOFT 1:3.5 120mm
- Class:
- · Slow 6x7 medium-format standard prime lens
- · Professional model (Top class)
- · Soft Focus lens
- System:
- · Pentax 6×7 (1969)
Abbreviations
| SMC | Multi-layer anti-reflection coating is applied to the surfaces of lens elements. This anti-reflection coating increases light transmission, eliminates flare and ghosting, and maintains color consistence among all lens models. |
| SOFT | The lens features soft focus effect control. |
Model history (2)
| ■smc Pentax 6×7 120mm F/3.5 Soft | M | 4 - 3 | 0.75m | ⌀77 | 1982 ● | |
| ■smc Pentax 67 120mm F/3.5 Soft | M | 4 - 3 | 0.75m | ⌀77 | 1988 ● | |
Specification
| Optical design: | |
| Medium format 6x7 | |
| 120mm | |
| F/3.5 | |
| 4 elements in 3 groups (Cooke triplet derivative) | |
| Pentax 6x7 [84.95mm] (Inner mount) | |
| 40.4° | |
| Diaphragm mechanism: | |
Diaphragm type: | Manual |
Aperture control: | Aperture ring |
| 8 (eight) | |
| Focusing: | |
| 0.75m | |
| <No data> | |
Focusing modes: | Manual focus only |
Manual focus control: | Focusing ring |
| Physical characteristics: | |
| 520g | |
| ⌀89×63.5mm | |
| Accessories: | |
| Screw-type 77mm | |
| RH-RC77 - Screw-type round | |
| <No data> |
Sources of data
- Pentax 67 interchangeable lenses operating manual.
- Pentax 67 operating manual (PUB. 56801) (October 1992).
- Pentax - A complete selection of top-performance cameras booklet (PUB. 040201) (October 1997).
Frequently asked questions
What is a Soft Focus effect and what are its benefits?
Spherical aberration has been purposely introduced into this lens to produce photographic images that are sharp yet which have an alluring softness.
Because of the ethereal glow that can be achieved by using Soft Focus, the lens is ideal for creating scenes with a dreamy feel. It is also good for masking blemishes in portrait photography, leaving the model's skin looking flawless.
The effect of Soft Focus is a complex phenomenon that depends on focusing distance, distance to background, relative aperture etc. It is not the same as an out-of-focus image, and cannot be achieved simply by defocusing a common lens.
The effect can be approximated in post-processing but it is not as trivial as just applying a blur filter over the image.
Other standard prime lenses in the Pentax 6×7 system
| ■Pentax 6x7 mount (7) | |||||||||
| Asahi Super-Multi-Coated Takumar 6×7 90mm F/2.8 LS | A | 6 - 5 | 0.85m | B67 | 1971 ● | ||||
| smc Pentax 6×7 90mm F/2.8 | A | 7 - 5 | 0.65m | B67 | 1980 ● | ||||
| smc Pentax 67 90mm F/2.8 | A | 7 - 5 | 0.65m | ⌀67 | 1989 ● | ||||
| Asahi Super-Takumar 6×7 105mm F/2.4 | A | 6 - 5 | 1.00m | ⌀67 | 1969 ● | ||||
| Asahi Super-Multi-Coated Takumar 6×7 105mm F/2.4 | A | 6 - 5 | 1.00m | B67 | 1971 ● | ||||
| smc Pentax 67 105mm F/2.4 | A | 6 - 5 | 1.00m | B67 | 1989 ● | ||||
| smc Pentax 6×7 120mm F/3.5 Soft | M | 4 - 3 | 0.75m | ⌀77 | 1982 ● | ||||