Characterized by its fast and sophisticated optical design, the Leica DG Nocticron 42.5mm f/1.2 ASPH. POWER O.I.S. from Panasonic is an 85mm equivalent prime for Micro Four Thirds mirrorless cameras. The fast f/1.2 maximum aperture benefits working in difficult lighting conditions and also affords more control over focus position for producing shallow depth of field imagery. The lens's optical design employs a pair of aspherical elements, one UHR element, and one extra-low dispersion element to reduce both spherical and chromatic aberrations for improved sharpness and clarity. Additionally, a Nano Surface Coating also enhances contrast and color fidelity by reducing lens flare and ghosting.

Complementing the optical attributes, this lens also distinguishes itself with a POWER Optical Image Stabilizer, which minimizes the appearance of camera shake for sharper handheld shooting. A stepping AF motor and internal focus design also offer fast and near-silent focusing performance that is ideal for both photo and video applications.

• Portrait-length prime is designed for Micro Four Thirds mirrorless cameras and provides an 85mm equivalent focal length.
• Exceptionally fast f/1.2 maximum aperture offers notable control over depth of field for working with selective focus techniques and also benefits shooting in low-light conditions.
• Two aspherical elements and one Ultra-High Refractive Index element help reduce spherical aberrations and distortion for improved sharpness and accurate rendering.
• One extra-low dispersion element controls chromatic aberrations and color fringing for greater clarity and color accuracy.
• A Nano Surface Coating minimizes surface reflections throughout the entire visible spectrum for maintained contrast and color fidelity with a marked reduction in lens flare and ghosting.
• An internal focusing system, coupled with a stepping AF motor, results in fast, smooth, and precise focusing performance that is well-paired to both still shooting and movie recording.
• POWER Optical Image Stabilizer (O.I.S.) minimizes the appearance of camera shake to realize sharper imagery when shooting handheld.
• Metal lens barrel is accentuated by a dedicated MF/AF switch and an aperture ring for more direct, intuitive operation.
• Rounded seven-blade diaphragm contributes to a pleasing bokeh quality.