It’s the smallest lens of its kind, and is currently available inSonyE-mount,FujifilmX-mount and L-mount.
But its only a minor shift, so it might be okay.
Build quality is stellar.
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A tiny turn unlocks the hood, but the lock is secure.
A nice bonus is that the minimum focus distance is close enough to render a maximum 0.5x magnification ratio.
But technically speaking, light loss is a bad thing regarding image quality.
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Chromatic aberration is virtually absent at any setting with lens corrections switched off.
Put simply, optical quality is stellar.
Bokeh is pleasant, too.
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On the odd occasion Ive seen bokeh fringing, but really it’s negligible.
Theres also a hint of cats-eye bokeh in the corners, but Ive seen way worse from pricier lenses.
All in all, the Sigma 10-18mm F2.8 DC DN is an easy lens to recommend.
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Its tiny, lightweight, focuses fast, is optically sharp and has a constant f/2.8 aperture.
Kudos to Sigma this little beauty is set to join ourbest Sony lensesguide.
Should I buy the Sigma 10-18mm F2.8 DC DN?
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From macro photography to tight selfies, you’re free to get subjects in focus.
For many, that alone will tip the balance in favor of the Sigma.
Tamron 11-20mm F2.8The other third-party ultra-wide-angle zoom lens for APS-C cameras is Tamrons 11-20mm F2.8.
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The Sigma has a slightly wider zoom range, while design-wise its smaller and lighter, too.
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Selfie at the 10mm focal length(Image credit: Future)
Selfie at 18mm no lens corrections – see the vignetting(Image credit: Future)
Selfie at 18mm with lens corrections applied(Image credit: Future)
Dog walk, wideangle closeup(Image credit: Future / Tim Coleman)
Wide angle closeup of an old car(Image credit: Future)
Steps in an arboretum, taken with the f/5.6 aperture(Image credit: Future)
Flooded common in the UK, taken with the f/11 aperture(Image credit: Future)
Sunset over a field with wooden fence casting shadows, taken with the f/11 aperture(Image credit: Future)
Old church on a sunny day at golden hour, taken with the f/5.6 aperture(Image credit: Future)
Sound desk closeup at night, taken at 10mm and f/2.8(Image credit: Future)
Sigma 10-18mm F2.8 DC DN lens set to 10mm and f/2.8, with and without lens correction applied
This sequence of five uncorrected raw images goes through the aperture range sequentially from f/2.8, f/4, f/5.6/ f/8 and f/11 to demonstrate vignetting
Closeup of autumn leaves, using the minimum focus distance and f/2.8 aperture(Image credit: Future)
Closeup of autumn leaves, taken with the f/2.8 aperture. See the round bokeh(Image credit: Future)
Closeup of autumn leaves, taken with the f/7.1 aperture – see how the bokeh is affected(Image credit: Future)
Closeup of autumn leaf on mossy tree details(Image credit: Future)
Closeup of mushrooms, taken at f/2.8(Image credit: Future)
Closeup of mushrooms at the base of a mossy tree, taken at f/5.6(Image credit: Future)
Closeup of mushroom growing out of a crack in a tree, taken at f/2.8(Image credit: Future)
