- Compact Pancake Style Lens
- Micro Four Thirds Mount
- Unique Manual Focus System
- 40mm Equivalent In 35mm Format
- 2 Aspheric Lens Elements
- Minimum Focus Distance : 0.66’/0.2 m
The Panasonic Lumix 20mm f/1.7 Aspheric G-Series Lens, a Micro Four Thirds system large-diameter wide-angle f/1.7 20mm (40mm in 35mm camera equivalent) manual focus pancake-style lens. The lens operates a unique manual focus system which drives the focusing group indirectly via the lens’s autofocus motor. The feel of the manual focus ring remains the same whether the camera is set to auto or manual focus which can be problematic in some shooting scenarios. The advantage is that turning the manual focus ring quickly makes very fast initial adjustments, but then turning it slowly allows very fine focusing.
This lens produces bright photos with a dramatic soft focus even in dimly lit locations. Its compact, easy-to-carry size is also ideal for capturing everyday scenes and snapshots.
The 20mm F1.7 is the first must-have lens for Micro Four Thirds, and one which especially makes sense with the compact-bodied E-P1 and GF1. On these cameras it provides a winning combination of small size, high all-round image quality and excellent low-light capability. The only real negative is that it’s quite expensive.
We had much fun with the lens out there but we do also feel that it’s a bit over-hyped especially considering its rather high price point and the need to correct some of its design problems via auto-correction during post-processing.
- small, handy and with good fastness at the same time,
- excellent image quality in the frame centre, including the maximum relative aperture,
- good image quality at the edge of the frame,
- chromatic aberration well-corrected,
- good work against bright light,
- accurate autofocus.
- high distortion,
- significant vignetting.