Panasonic G 20 mm f/1.7 ASPH.
Panasonic Sep 2009
Panasonic Micro Four Thirds

Panasonic G 20 mm f/1.7 ASPH.

This is a prime lens for Micro Four Thirds, covering 20 mm and a maximum aperture of f/1.7. Released in 2009, it weighs 100 g. That combination suits landscape, architecture and low-light photography.

It is a prime lens designed for micro four thirds cameras. This wide-angle prime lens features a f/1.7 maximum aperture, making it ideal for landscape, architecture, astrophotography, low-light. The optical design incorporates 7 elements / 5 groups, ensuring sharp image quality and minimal distortion. Despite its robust professional construction, the lens delivers exceptional optical performance.

f/1.7
Aperture
20mm
Focal
100 g
Weight
Sep 2009
Released
Panasonic site

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Good for landscapearchitecturelow-lightastrophotography
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Specification

Manufacturer data
Focal length
20 mm
Maximum aperture
f/1.7
Minimum aperture
f/16
Number of diaphragm blades
7
Optical construction
7 elements / 5 groups
Minimum focusing distance
0.2 m (7.87 inches)
Filter size
46 mm
Lens mount
Micro Four Thirds
Dimensions
63 x 25.5 mm
Weight
100 g (3.53 oz)
Lens type
Prime lens
Image stabilization
No
Max Format size
Micro Four Thirds
Usage
Landscape, Architecture, Astrophotography, Low-light

Wide open at 2 m, background blur ≈ 0.7% of the frame width

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Video reviews

2 on YouTube
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