Archive for April, 2016

Real world experience with the Sigma 18-35mm f/1.8 Art

April 23rd, 2016

Writing my first article about the Sigma 18-35mm f/1.8 Art lens was mostly motivated by the fact that the AF inconsistency was sooo frustrating. Then only one week later I dropped the camera (a first for me in 10 years of owning a DSLR) with the Sigma attached, damaging the rear barrel and destroying the main PCB. But hey, I already knew where to send it so some weeks and about 200€ later I got it back like new just before leaving for two weeks vacation in Sri Lanka.

Of course there was no time to check focus again or even take test shots so this journey was the real test to see if the lens can hold up to my expectations.

After going through over 800 pictures the situation is more or less unchanged

  • AF misses maybe 10-15% of all shots
  • when AF is off it is almost always completely off – more or less to either end of the focus scale
  • I found no pattern in the AF glitches, they seem to be more or less random
  • refocusing one or two times gets the AF to work correctly most of the time
  • Sharpness, contrast and color is absolutely amazing when focus is correct

All in all the lens was way more convenient to use for everyday shooting than I thought. Yes, the range may be a bit limited compared to a 17-50mm f/2.8  and it is far bigger and heavier. However the creative potential and amazing image quality at all apertures makes the Sigma 18-35mm f/1.8 Art a joy to use for me.

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EOS 7D – ISO100 – 1/2000 s – f/1.8 – 18mm

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EOS 7D – ISO3200 – 1/200 s – f/1.8 – 20mm

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EOS 7D – ISO800 – 1/60 s – f/1.8 – 18mm

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EOS 7D – ISO100 – 1/1600 s – f/1.8 – 18mm

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EOS 7D – ISO100 – 1/1250 s – f/1.8 – 18mm