Panasonic LUMIX G 42.5mm f/1.7 ASPH. POWER O.I.S.

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Micro Four Thirds Prime mft 2026

Image Stabilization

Autofocus

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Compare with

43mm

Focal length

f/1.7

Max aperture

130 g

Weight

14mm35mm85mm200mm600mm

▲ 43mm

Max aperture

f/1.4

f/1.7

f/2.8

Constant Aperture

Zoom Ratio: 1x

Aperturef/1.7

f/1.7f/22

Near focus13' 4"

Far focus14' 11"

Total DOF1' 7"

Hyperfocal247' 6"

Subject distance14' 1"

Focal length43 mm

Aperturef/1.7

SensorMicro 4/3

Illustrative scene preview based on this lens's focal length, aperture, and sensor coverage.

This preview uses 43mm, f/1.7, and Micro 4/3. Subject distance is estimated to keep lens previews comparable.

Min aperture: f/22
Diaphragm blades: 7

Optics

Optical construction: 10 elements in 8 groups
Special elements: 1 aspherical element
Coatings: Fluorine coating

Focusing

Minimum focus: 31 cm
Max magnification: 0.2×
AF motor: Stepping motor

Physical

Weight: 130 g
Dimensions: ⌀55mm × 50mm
Filter thread: 37 mm
Color: Black

Recommended Use

Ideal for: Portraits, Street, Travel, Walkaround / Daily, Weddings

Release year: 2026
Announced: Aug 25, 2026
Approx price: $500 USD

The best

Compact Micro Four Thirds short-portrait prime with 42.5mm f/1.7 and POWER O.I.S.

Also

Small, stabilized and refreshed with a fluorine-coated front element

Summary

The Panasonic LUMIX G 42.5mm f/1.7 ASPH. POWER O.I.S. is a compact Micro Four Thirds prime built for short-telephoto portraits, detail work and everyday shooting with a light kit. Its 42.5mm focal length gives an 85mm-equivalent angle of view, a classic portrait perspective that tightens composition without forcing the photographer too far from the subject. The updated H-HS043A version keeps the important core specifications: a bright f/1.7 aperture, POWER O.I.S. optical stabilization, stepping-motor autofocus, a 10-element / 8-group optical design and a very light 130 g body with a 37mm filter thread.

The most relevant practical change is the fluorine coating on the front element, which makes dust, fingerprints and small water marks easier to remove. In real photographic use, the lens stands out because it combines a flattering portrait field of view with stabilization inside a small lens. The f/1.7 aperture helps indoors and gives smoother backgrounds than a typical standard zoom, while the 0.31 m minimum focusing distance and 0.20x maximum magnification make it useful for nearby details, food, flowers and small objects.

It is a sensible choice for travel portraits, family photography, discreet wedding coverage, product details, casual close-ups and tighter video framing on Micro Four Thirds cameras. It should not be treated as a replacement for a dedicated macro lens or a faster professional portrait telephoto when maximum blur is the goal. Its real appeal is different: it gives photographers a more selective, portrait-oriented look while staying small, stabilized and easy to carry every day.