Panasonic

Panasonic H-NS043 Leica 42.5mm f/1.2 Lens

4.6 (84 reviews)
f/1.2

A fast f/1.2 Leica-certified portrait lens with optical stabilization for Micro Four Thirds shooters.

$1,797.99*$1,999.99Save 10%
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*Price sourced from Amazon.com. Last updated:Jul 15, 2026.Price and availability are subject to change.

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Overview

The Panasonic Lumix G Leica DG Nocticron 42.5mm f/1.2 ASPH. Power O.I.S. lens is engineered for photographers who demand the highest image quality from their Micro Four Thirds system. With an 85mm equivalent field of view, it sits squarely in the classic portrait focal length range, and its ultra-fast f/1.2 aperture creates beautifully rendered backgrounds with creamy bokeh that sets subjects apart from their surroundings. The Leica certification is not merely cosmetic — this lens meets strict optical performance standards for resolution, contrast, and distortion control.

Practical features complement the optical excellence. The built-in Power O.I.S. system provides effective stabilization for handheld shooting in dim environments, while the advanced Nano Surface Coating suppresses ghosting and flare to maintain contrast and color accuracy in backlit or high-contrast scenes. The external aperture ring gives photographers direct, tactile control over exposure settings without digging into menus, and the included metal lens hood adds both protection and a professional aesthetic. Whether shooting portraits, event coverage, or low-light street photography, this lens is a flagship-caliber optic for the Micro Four Thirds platform.

Key Features

Optically Stabilized with LUMIX Power O.I.S.

LUMIX Advanced Nano Surface Coating

External Aperture Ring and Metal Lens Hood

Micro Four Thirds Lens Mount

Lens not Zoomable

Specifications

Focal Length
42.5mm (85mm equivalent)
Maximum Aperture
f/1.2
Lens Mount
Micro Four Thirds
Image Stabilization
Power O.I.S.
Lens Coating
Nano Surface Coating
Aperture Control
External Aperture Ring
Included Accessories
Metal Lens Hood
Zoom
No (Fixed / Prime Lens)

Pros & Cons

👍 Pros

  • Ultra-fast f/1.2 maximum aperture delivers beautiful background separation and strong low-light performance.
  • Built-in Power O.I.S. stabilization reduces the need for a tripod in challenging lighting conditions.
  • Nano Surface Coating minimizes ghosting and flare for cleaner high-contrast images.
  • External aperture ring and metal lens hood provide a premium, professional handling experience.

👎 Cons

  • Premium Leica-certified optics come at a significantly higher price than comparable Micro Four Thirds lenses.
  • Fixed 42.5mm focal length limits versatility compared to a zoom lens, requiring the photographer to move for framing changes.
  • The lens is not the lightest option in the MFT system, which may affect balance on smaller camera bodies.
  • Limited to Micro Four Thirds mount with no native compatibility for other systems.

Frequently Asked Questions

This lens uses the Micro Four Thirds mount, making it compatible with Panasonic Lumix and Olympus (OM System) mirrorless cameras. The 42.5mm focal length provides an 85mm equivalent field of view on these bodies.
Yes, it features Panasonic's Power O.I.S. (Optical Image Stabilizer), which helps reduce blur from camera shake during handheld shooting, especially in low light.
This is a fixed focal length (prime) lens at 42.5mm. It does not zoom, but its fast f/1.2 aperture provides exceptional low-light performance and shallow depth of field control.
The Lumix Advanced Nano Surface Coating is applied to lens elements to minimize ghosting and flare caused by light reflections, resulting in cleaner images with better contrast, especially when shooting toward light sources.
Yes, it features an external aperture ring that allows direct manual control of the aperture setting, giving photographers a traditional and tactile shooting experience.