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Sony SAL-1118 DT 11-18mm f4.5-5.6 lens review Gordon Laing, September 2007

More results : Outdoor / Resolution / Corner sharpness / Fringe and macro / Geometry / Vignetting


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Outdoor scene: Sony DT 11-18mm vs 18-70mm with Alpha A100


  To compare real-life performance we shot the same scene with the Sony DT 11-18mm and DT 18-70mm using the Sony Alpha A100 within a few moments of each other using the camera's best quality JPEG and lowest ISO settings. Anti-shake was turned off.

Both lenses were set to a focal length of 18mm for this test. We acknowledge we're comparing the wide-end of one lens against the long end of another, but it still illustrates any optical differences when switching from one range to the next.

With both the DT 11-18mm and DT 18-70mm zoomed to a focal length of 18mm, the former delivers a slightly sharper and higher contrast result. This is apparent across the three cropped areas, although it's quite subtle at times. And while subjects like the trees in the bottom crop are a little better-defined on the DT 11-18mm, the ultra-wide lens also exhibits slightly higher coloured fringing on the mountain range. Ultimately if you owned both lenses though and were shooting at 18mm, you'd be better-off overall using the DT 11-18mm rather than the kit zoom. Now let's compare their resolution in a studio environment.



 

Sony DT 11-18mm f/4.5-5.6
Sony DT 18-70mm f/3.5-5.6
1/250, f8, 100 ISO
1/250, f8, 100 ISO
1/250, f8, 100 ISO
1/250, f8, 100 ISO
1/250, f8, 100 ISO
1/250, f8, 100 ISO

Sony DT 11-18mm lens results continued...

Outdoor / Resolution / Corner sharpness / Fringe and macro / Geometry / Vignetting




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