Olympus M.Zuiko 12-50mm 1:3.5-6.3 EZ ED - Review / Test Report - Samples & Verdict
Lens Reviews - (Micro-)Four-Thirds

Sample Images & Verdict

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Make Panasonic
Model DMC-GX1
ISO Speed 200
Focal Length 12.0mm
Aperture: f/5.6
Exposure 1/1600s
Make Panasonic
Model DMC-GX1
ISO Speed 200
Focal Length 13.0mm
Aperture: f/5.6
Exposure 1/125s
Make Panasonic
Model DMC-GX1
ISO Speed 200
Focal Length 16.0mm
Aperture: f/5.0
Exposure 0.8s
Make Panasonic
Model DMC-GX1
ISO Speed 200
Focal Length 12.0mm
Aperture: f/3.5
Exposure 1/3200s
Make Panasonic
Model DMC-GX1
ISO Speed 200
Focal Length 50.0mm
Aperture: f/6.3
Exposure 1/1250s
Make Panasonic
Model DMC-GX1
ISO Speed 200
Focal Length 12.0mm
Aperture: f/4.0
Exposure 1/2000s
Make Panasonic
Model DMC-GX1
ISO Speed 200
Focal Length 50.0mm
Aperture: f/8.0
Exposure 1/2500s
Make Panasonic
Model DMC-GX1
ISO Speed 200
Focal Length 12.0mm
Aperture: f/5.6
Exposure 1/640s
Make Panasonic
Model DMC-GX1
ISO Speed 200
Focal Length 43.0mm
Aperture: f/16.0
Exposure 1/80s
Make Panasonic
Model DMC-GX1
ISO Speed 200
Focal Length 43.0mm
Aperture: f/8.0
Exposure 1/1000s
Make Panasonic
Model DMC-GX1
ISO Speed 200
Focal Length 14.0mm
Aperture: f/5.6
Exposure 1/250s
Make Panasonic
Model DMC-GX1
ISO Speed 400
Focal Length 12.0mm
Aperture: f/6.3
Exposure 1/2500s
Make Panasonic
Model DMC-GX1
ISO Speed 200
Focal Length 43.0mm
Aperture: f/11.0
Exposure 1/800s
Make Panasonic
Model DMC-GX1
ISO Speed 200
Focal Length 12.0mm
Aperture: f/4.0
Exposure 1/4000s

Verdict

Unfortunately we didn't really fall in love with the Olympus M.Zuiko 12-50mm f/3.5-6.3 ED EZ. The zoom range is surely very attractive but performance-wise it has its issues. In the resolution chapter, the lens performs just Okay with slightly soft corners at 12mm and a generally reduced quality at 50mm. The quite high amount of lateral CAs (corners) at 12mm doesn't help either here. The micro-four-thirds system takes care of distortion correction so you don't need to worry here. There is a bit of vignetting at 12mm at f/3.5 but it's not really objectionable at other settings.

In terms of build quality it stays within its consumer-grade scope except for the nice addition of weather sealing. However, on the downside its rather long size feels rather alien for a standard zoom lens on a smallish Micro-Four-Thirds camera. Olympus' MSC AF continues to impress with speedy and noiseless operations. Object tracking remains out-of-scope but this is more of a camera issue for the time being. Conservative users will probably take a while to get used to the motorized zooming mechanism but it certainly comes handy when taking movies.

The pricing was quite steep in the beginning about it came down quite a bit over the recent year. We are still a bit undecided what to think of it. It is surely a very versatile lens but quality-wise there is no real value-add over conventional kit zoom lenses.

Optical Quality:
Mechanical Quality:
Price/Performance:
      
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