Sony Global

Video Chat with a Photography Expert - Live

Panasonic LUMIX G 20mm f/1.7 II ASPH. Lens (Black)

BH #PA2017IIB • MFR #H-H020AK
Print
Panasonic LUMIX G 20mm f/1.7 II ASPH. Lens (Black)
Key Features
  • Micro Four Thirds System
  • 40mm (35mm Equivalent)
  • Aperture Range: f/1.7 to f/16
  • Two Aspherical Elements
Characterized by its slender profile, the black LUMIX G 20mm f/1.7 II ASPH. from Panasonic is a compact, slightly wide 40mm equivalent prime for Micro Four Thirds mirrorless cameras. Its bright f/1.7 maximum aperture offers notable control focus for working with shallow depth of field techniques and also benefits working in difficult lighting conditions. The optical design incorporates a pair of aspherical elements to suppress spherical aberrations and distortion for high sharpness and accurate rendering, and individual elements have also been multi-coated to control surface reflections and flare for improved contrast in strong lighting conditions.
More Details
In Stock
Free 2-Day Shipping
Protect Your Gear
Add a protection plan from $35.99
Ask an Expert
800-606-6969

Panasonic Lumix G 20mm f/1.7 II Overview

Characterized by its slender profile, the black LUMIX G 20mm f/1.7 II ASPH. from Panasonic is a compact, slightly wide 40mm equivalent prime for Micro Four Thirds mirrorless cameras. Its bright f/1.7 maximum aperture offers notable control focus for working with shallow depth of field techniques and also benefits working in difficult lighting conditions. The optical design incorporates a pair of aspherical elements to suppress spherical aberrations and distortion for high sharpness and accurate rendering, and individual elements have also been multi-coated to control surface reflections and flare for improved contrast in strong lighting conditions.

Slightly wider-than-normal prime is designed for Micro Four Thirds mirrorless cameras and offers a 40mm equivalent focal length.
Bright f/1.7 maximum aperture benefits working in low-light conditions and also affords greater control over depth of field for working with selective focus techniques.
Two aspherical elements are used to reduce spherical aberrations and distortion in order to realize greater sharpness and resolution.
Individual elements have been multi-coated to effectively reduce lens flare and ghosting for improved contrast when working in strong lighting conditions.
Autofocus motor supports camera's contrast detection for precise focusing performance. AF can also be manually overridden for more fine-tuned control.
Pancake form factor measures just 1"-thick, making it ideal for everyday and travel use.
Rounded seven-blade diaphragm contributes to a pleasing bokeh quality.
UPC: 885170152687

Panasonic Lumix G 20mm f/1.7 II Specs

Focal Length
20mm (35mm Equivalent: 40mm)
Aperture
Maximum: f/1.7
Minimum: f/16
Lens Mount
Micro Four Thirds
Lens Format Coverage
Micro Four Thirds
Angle of View
57°
Minimum Focus Distance
7.87" / 20 cm
Magnification
1:7.7 Macro Reproduction Ratio
0.13x Magnification
Optical Design
7 Elements in 5 Groups
Aperture/Iris Blades
7, Rounded
Focus Type
Autofocus
Image Stabilization
No
Filter Size
46 mm (Front)
Dimensions
ø: 2.48 x L: 1" / ø: 63 x L: 25.5 mm
Weight
3.07 oz / 87 g
Packaging Info
Package Weight
0.43 lb
Box Dimensions (LxWxH)
4.5 x 4.1 x 3.25"

Panasonic Lumix G 20mm f/1.7 II Reviews

It's the lens you'll always want to carry with you.

By Robert
Rated 5 out of 5
Date: 2026-04-14

The small size and light weight are the top reasons for this lens. It's so small and light, putting it in your bag is no big deal. Images are sharp with good contrast. The F1.7 works great in very low light. The focus is a bit on the slow side and in very quiet conditions, you can hear it. I consider this minor, but others may disagree. I've hear rumor that the lens may be discontinued. I'm not sure if the rumor is true or not, but if true and you can't find it new, there should be a used market to purchase this lens.

Great Compact Lens

By Cale
Rated 4 out of 5
Date: 2025-11-06

I'm New To Photography And Have Enjoyed Experimenting With This Lens's Wide Aperture Range. If The Autofocus Was Faster And Quieter I Would Give Five Stars.

See any errors on this page?
Whatever You Need, We've Got It