Imaging recource: Sigma announces 20mm F2 DG DN Contemporary I Series lens, the company’s widest I Series lens yet

Sigma has announced the seventh lens in its 'I Series' of premium compact prime lenses for mirrorless cameras. The new 20mm F2 DG DN Contemporary is the widest lens in the all-metal series, offering a 94.5-degree angle of view on full-frame cameras. The lens, available in L-mount and Sony E-mount, weighs just 370 grams (13.1 ounces) and is a mere 72.4mm (2.9") long. The maximum diameter is 70mm (2.8"), and the lens has a 62mm filter thread. We have been able to go hands-on with the lens ahead of today's announcement, although...
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