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Lens · prime

Mamiya Sekor Z 180mm f/4.5 W-N

Mamiya

Discontinuedmedium-format

Mamiya Sekor Z 180mm f/4.5 W-N: 4 elements in 3 groups, 1.1m minimum focus, 77mm filter thread, 900g.

Focal length
180mm
Max aperture
f/4.5
Mount
Mamiya RZ
Format
medium-format
Elements / groups
4 / 3

Known for

  • Portraits
  • Fashion
  • Beauty
  • Headshots

Considerations

  • Electronic Seiko #1 leaf shutter: needs camera battery power

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 control4, level 4 of 5
Vignetting control4, level 4 of 5
Distortion control5, level 5 of 5

Bokeh: Beautiful telephoto

Rendering: Excellent portrait rendering

Colour: Warm

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

Buying guide

Check the leaf shutter fires at all speeds, the aperture and focusing smoothness, and the condition of the glass.

Specifications

MountMamiya RZ
Focal Length180mm
Max Aperturef/4.5
Min Aperturef/45
Min Focus1.1m
Filter Size77mm
Weight900g

Optical design

FormulaTessar
Elements4
Groups3
CoatingMulti-Coated

Pricing

Typical used price (US market)
$300 - $550
Mint
~$700

Indicative, no dated source.