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Lens · prime

SMC Pentax-M* 67 800mm f/6.7 ED [IF]

Pentax · 1989-2008

Discontinuedmedium-format

The SMC Pentax-M* 67 800mm f/6.7 ED [IF] is the longest lens in the 67II lineup, roughly equivalent to 400mm on 35mm format. It uses ED glass and internal focusing and was sold with a rear converter. SMC Pentax-M* 67 800mm f/6.7 ED [IF]: 10 elements in 9 groups, 8.0m minimum focus, 67mm filter thread, 6500g.

Focal length
800mm
Max aperture
f/6.7
Mount
Pentax 67
Format
medium-format
Elements / groups
10 / 9

Known for

  • Wildlife
  • Astronomy
  • Sports
  • Nature

Considerations

  • Extremely heavy
  • Requires heavy tripod
  • Very specialized

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 control5, level 5 of 5

Bokeh: Extreme compression

Rendering: Massive reach on medium format

Colour: Warm Pentax with ED correction

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

Versions

smc PENTAX-6x7 800mm f/6.7 ED [IF]

1983-1989

Pentax-6x7 cosmetics

smc PENTAX-M* 67 800mm f/6.7 ED [IF]

1989-c.2009

Engraved smc PENTAX-M* 67

Same lens, renamed

Common issues

  • Size and weight limit use

Buying guide

Check ED element for haze.

Specifications

MountPentax 67
Focal Length800mm
Max Aperturef/6.7
Min Aperturef/45
Min Focus8m
Filter Size67mm
Weight6500g

Optical design

FormulaTelephoto
Elements10
Groups9
CoatingSMC (Pentax)
SpecialED glass, internal focusing

Pricing

Typical used price (US market)
$2000 - $3500
Mint
~$4500

Indicative, no dated source.