The new lens will be a welcome addition to RF shooters who can’t justify the $2,299 of its sibling and don’t need such a wide aperture. At $1,699, this f/4 ultra-wide zoom lens weighs 1.2 lb (544 g) compared to 1.85 lb (840 g) of the faster lens and is significantly shorter too: a mere 3.9“ (9.9cm) compared to the 15-35mm’s 4.99” (126.8mm). It’s also a shade slimmer at 3.3” (8.4cm) in diameter.
16 elements sit in 12 groups, there are 9 rounded aperture blades, and the front filter thread is 77mm. The minimum focus distance is notably smaller than the faster lens at just 7.9” (20.1cm).
The lens includes stabilization which Canon claims will offer 5.5 stops of shake correction, increasing to seven stops when paired with a body that features IBIS. Canon also promises excellent dust and weather resistance.
$1,699 isn’t cheap but Canon shooters — landscape photographers in particular — will be pleased to have a slightly more affordable option available. Previously, the slower of Canon’s L-series ultra-wide zooms has made up for the slower aperture by featuring stabilization, but Canon opted to include it in the faster lens as well. Instead, Canon’s engineers have squeezed even more width into the f/4 version, taking advantage of the possibilities presented by the new mount.
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