Olympus M.Zuiko Digital ED 25mm f/1.2 PRO lens

SKU: 1012833 | MPN: V311080BW000

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Details for Olympus M.Zuiko Digital ED 25mm f/1.2 PRO lens

Micro Four Thirds System Lens

50mm (35mm Equivalent)

Aperture Range: f/1.2 to f/16

Three Extra-Low Dispersion Elements

One Aspherical Element

Four High Refractive Index Elements

MSC High-Speed Imager AF System

Internal Focusing, MF Clutch

Weather-Sealed Construction

Nine-Blade Diaphragm

A high-speed normal-length prime featuring an advanced optical design, the M.Zuiko Digital ED 25mm f/1.2 PRO Lens from Olympus is a 50mm equivalent focal length lens designed for Micro Four Thirds mirrorless cameras. Its unique 19 elements, 14 groups construction incorporates extra-low dispersion, aspherical, and high refractive index elements to significantly reduce both spherical and chromatic aberrations for notable image clarity, sharpness, and color accuracy. The lens is also characterized by a bright f/1.2 maximum aperture, which benefits working in low-light conditions and also affords extensive control over depth of field. A nine-blade aperture is featured as well, to achieve a smooth bokeh quality when working with shallow depth of field techniques.

Beyond the imaging assets, the lens' physical design is characterized by a weather-sealed construction to benefit working in harsh climates. It also features a Movie & Stills Compatible (MSC) autofocus system for smooth, quiet, and fast focusing performance that is suitable to both stills and video recording. A manual focus clutch permits quick switching to MF control and a printed depth of field scale is also featured on the lens barrel for pre-focusing and hyperfocal focusing techniques.

Standard prime 25mm lens is designed for Micro Four Thirds system cameras, and provides a 50mm equivalent focal length.

Exceptionally fast f/1.2 maximum aperture supports working in difficult lighting conditions and also affords extensive control over depth of field for selective focus techniques.

The intricate optical design employs one Super Extra-Low Dispersion element, two extra-low dispersion elements, one Extra High Refractive Index element, three high refractive index elements, and one aspherical element, which all work in concert to control chromatic and spherical aberrations for improved clarity, reduced color fringing, and enhanced sharpness.

A MSC autofocus system, along with an internal focusing design, provides quick, quiet, and precise focusing performance to benefit both still photo shooting and movie recording. Additionally, an MF clutch is used for fast changing to manual focus for more precise control.

Lens function button is featured on the side of the barrel for direct settings adjustment.

Weather-sealed construction guards the lens against dust and moisture for working in harsh environments.

Nine-blade diaphragm contributes to a pleasing bokeh quality.


  • Focal Length ... 25mm
  • Comparable 35mm Focal Length: 50 mm
  • Aperture ... Maximum: f/1.2
  • Minimum: f/16
  • Camera Mount Type ... Micro Four Thirds
  • Format Compatibility ... Micro Four Thirds
  • Angle of View ... 47°
  • Minimum Focus Distance ... 11.81" (30 cm)
  • Magnification ... 0.11x
  • Elements/Groups ... 19/14
  • Diaphragm Blades ... 9
  • Features
  • Autofocus ... Yes
  • Physical
  • Filter Thread ... Front: 62 mm
  • Dimensions (DxL) ... Approx. 2.76 x 3.43" (70 x 87 mm)
  • Weight ... 14.46 oz (410 g)

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