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Lens · prime

SMC Pentax 67 120mm f/3.5 Soft

Pentax · 1989-c.2009

Discontinuedmedium-format

The SMC Pentax 67 120mm f/3.5 Soft is a soft-focus portrait lens. The softness is controlled by the aperture alone: strongest wide open at f/3.5, fading as you stop down, and gone by about f/11. SMC Pentax 67 120mm f/3.5 Soft: 4 elements in 3 groups, 8 aperture blades, 0.75m minimum focus, 77mm filter thread, 520g.

Focal length
120mm
Max aperture
f/3.5
Mount
Pentax 67
Format
medium-format
Elements / groups
4 / 3

Known for

  • Glamour
  • Wedding portraits
  • Fine art
  • Romantic imagery

Considerations

  • Specialized use

Optical characteristics

Silverlog's editorial rating: our own judgement, not measured data.

Sharpness (wide)3, level 3 of 5
Sharpness (stopped)4, level 4 of 5
Contrast3, level 3 of 5
Flare resistance3, level 3 of 5
CA control4, level 4 of 5
Vignetting control4, level 4 of 5
Distortion control5, level 5 of 5

Bokeh: Dreamy with glow

Rendering: Controlled aberration

Colour: Warm

Silverlog's editorial rating, 1 to 5; five is best. Not lab-measured.

Versions

smc PENTAX-6x7 SOFT

1982-1989

Engraved smc PENTAX-6x7 SOFT 1:3.5 120mm

smc PENTAX 67 SOFT

1989-c.2009

Engraved smc PENTAX 67 SOFT 1:3.5 120mm

Same optics

Common issues

  • Manual diaphragm makes focusing dim when stopped down

Buying guide

Check the aperture ring and focusing. Specialised portrait lens.

Specifications

MountPentax 67
Focal Length120mm
Max Aperturef/3.5
Min Aperturef/22
Aperture Blades8
Min Focus0.75m
Filter Size77mm
Weight520g

Optical design

Formulaother
Elements4
Groups3
CoatingSMC (Pentax)

Pricing

Typical used price (US market)
$300 - $500
Mint
~$600

Indicative, no dated source.