The M.Zuiko Digital ED 17mm f/1.2 PRO from Olympus combines an advanced optical design with an exceptionally bright maximum aperture, making it a versatile wide-angle prime lens equivalent to 34mm for Micro Four Thirds mirrorless cameras. Its standout feature is the rapid f/1.2 maximum aperture, which is ideal for challenging lighting situations and provides enhanced control over depth of field. The lens is constructed with a sophisticated arrangement of 15 elements in 11 groups, incorporating extra-low dispersion, aspherical, and high refractive index elements to effectively minimize both chromatic and spherical aberrations, resulting in remarkable image clarity, sharpness, and color fidelity. Additionally, it includes a nine-blade aperture that produces a pleasing bokeh effect when utilizing shallow depth of field techniques, while a Z Coating Nano has been applied to individual elements to reduce flare and ghosting, thereby enhancing contrast.

In terms of physical attributes, the lens boasts a weather-sealed design, making it suitable for use in challenging environmental conditions. It is equipped with a Movie & Still Compatible (MSC) autofocus system that ensures smooth, quiet, and rapid focusing performance, making it appropriate for both photography and videography. Furthermore, a manual focus clutch allows for swift transitions to manual focus control, and a printed depth of field scale is present on the lens barrel to facilitate pre-focusing and hyperfocal focusing methods.

• Standard wide-angle 17mm lens is designed for Micro Four Thirds mirrorless cameras and provides a 34mm equivalent focal length.
  
  
• Exceptionally fast f/1.2 maximum aperture supports working in difficult lighting conditions and affords extensive control over depth of field for selective focus techniques.
  
  
• The intricate optical design employs one Super Extra-Low Dispersion element, three extra-low dispersion elements, one Extra-Low Dispersion Dual-Sided Aspherical element, one Extra-Low Dispersion Aspherical element, one Super High Refractive Index element, 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 Z Coating Nano has been applied to individual lens elements to noticeably reduce surface reflections and prevent lens flare and ghosting for improved contrast and color neutrality in strong lighting conditions.
  
  
• An 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.
  
  
• Programmable L-Fn (lens function) button for easily accessible settings adjustment.
  
  
• Weather-sealed construction guards the lens against dust, moisture, and freezing temperatures for working in harsh environments.
  
  
• Rounded nine-blade diaphragm contributes to a pleasing bokeh quality.