Leica Summarit-M 50mm f/2.5 on Sony NEX - Review / Lens Test Report - Sample Images & Verdict
Lens Reviews - Sony Alpha/NEX (APS-C)

Sample Images

Here're some RAW-converted images taken with the NEX-5. Please note that there's no valid EXIF data due to the lack of electronic coupling. Most images were either taken at f/2.5 or f/8 so you may roughly conclude the aperture settings from the depth-of-field.

Click on a thumbnail to view the original file (opens in a separate window). Please note that the originals are FULL SIZE samples (=several megabytes) thus requiring a significant amount of bandwidth so please take care of the limited resources here.

Make SONY
Model NEX-5
ISO Speed 200
Focal Length
Aperture: f/1.0
Exposure 1/4000s
Make SONY
Model NEX-5
ISO Speed 200
Focal Length
Aperture: f/1.0
Exposure 1/800s
Make SONY
Model NEX-5
ISO Speed 200
Focal Length
Aperture: f/1.0
Exposure 1/160s
Make SONY
Model NEX-5
ISO Speed 200
Focal Length
Aperture: f/1.0
Exposure 1/1000s
Make SONY
Model NEX-5
ISO Speed 200
Focal Length
Aperture: f/1.0
Exposure 1/4000s
Make SONY
Model NEX-5
ISO Speed 200
Focal Length
Aperture: f/1.0
Exposure 1/640s

Verdict

The Leica Summarit-M 50mm f/2.5 is a lens for enthusiasts. Its execution is next to perfect and you can feel that it was made with passion rather than task-work and that's despite the rather "low" price tag for a Leica lens. However, even an low-priced Leica lens is hardly meant for the masses so you've to pay dearly for the privilege. In optical terms it is certainly an impressive lens and a tad better than the Zeiss ZM Planar 50mm f/2 that we've tested here recently. The Summarit is already perfectly usable at f/2.5 and the results are very sharp from f/4 onwards. Lateral CAs are mostly well-controlled. Vignetting is basically a non-issue on the Sony NEX. Distortions are non-existent. The quality of the bokeh is smooth and buttery although it suffers a little from the comparatively slow max. aperture. The lens has a bit of a focus shift when stopping down - possibly the biggest "weakness" of the lens. The Sony NEX-Leica combination is absolutely beautiful but you'll probably rarely see it out there. Leica lenses are already quite exotic and most will use them on the Leica M8/9 anyway. However, if you're looking for the best 50mm lens for your Sony camera - this may well be it.

Optical Quality:
Mechanical Quality:
Price/Performance:
      
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