I’ve been reviewing lenses for over 16 years now, so it’s not often that I’m surprised when a new optic shows up for testing. But the Sigma 10-18mm F2.8 DC DN is an exception. It’s an ultrawideangle zoom for APS-C mirrorless cameras with a bright maximum aperture, and it’s tiny. In fact, it measures just 62mm long and weighs only 260g. What’s more, at £649, it’s one of the most affordable lenses of its type. It’s available for Fujifilm X, Sony E, and L-mount cameras.
To put these diminutive dimensions into context, we just have to look at other autofocus ultra-wide zooms available in these mounts. Perhaps its closest competitor is the Tamron 11-20mm F/2.8 Di III-A RXD, which is 24mm longer, 75g heavier, and costs £50 more. This Sigma 10-18mm f/2.8 is also considerably smaller than Fujifilm’s XF 10-24mm F4 R OIS WR, which retails for £949. Only the
