Sony 16, Sigma 19, Nikon 20 Landscape Comparison

Started Apr 9, 2012 | Discussions thread
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flint-hill Senior Member • Posts: 1,215
Sony 16, Sigma 19, Nikon 20 Landscape Comparison

Tilted landscape comparison of three lenses at five apertures f/2.8 to f/11.

Reduced and full resolution JPG's here:


1. What are the "best" (sharpest corner-to-corner) landscape apertures for each lens.

2. Considering each lens at its best aperture, how do the lenses rank for landscape use.

Sony 16mm f/2.8 E
Sigma 19mm f/2.8 EX DN
Nikon 20mm f/2.8 AIS (Fotasy adapter)

Test conditions:

Facing north, mid-afternoon, direct sunlight from southwest. Target is a treeline at about 75 meters for Sigma and Nikon and about 65 meters for Sony. (Tripod moved to equalize field of view for the shorter Sony lens.)


Sony NEX-5N on Bogen 3021 tripod. Manual focus by focus magnification. Manual exposure. IR remote release.

Adobe Camera Raw defaults. No further corrections.


Nikon and Sigma CA is fully correctable. Sony CA is not fully correctable. The Sony has purple fringing to a degree not evident in the other two lenses. CA not considered from this point on. Vignetting is fully correctable for all lenses and not considered further.

Nikon is best at f/8. Performance at f/5.6 is almost identical.

Sigma is best at f/5.6. Performance at f/8 is almost identical.

Sony is best at f/8. Corner performance is poor at all apertures. Results are so poor that I have to think the sample is defective.

Sigma at f/5.6 is better as a landscape lens than Nikon at f/8. Either meets my needs as a landscape lens. Both are much better than the Sony at f/8.

Sony Alpha NEX-5N
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