Sigma 24mm f/1.4 DG HS M | A £600/$850
What’s good: Excellent build quality, superb image quality, fast f/1.4 aperture. What’s bad: The Sigma lenses lack weather seals, and the 20mm is quite big and heavy. Our verdict: The Sigma 24mm is the outright top performer in the group.
Combining impeccable build quality and handling with the ease of autofocus and stunning image quality, both Sigma lenses on test are simply superb, and great value. The fast f/1.4 aperture rating is good to have, especially as both lenses continue to deliver great image quality when shooting wide-open. Go for the 20mm lens if you want to maximise your viewing angle, though the smaller 24mm is more manageable, boasts less barrel distortion and features a filter attachment thread.
The Zeiss 18mm is the king of the manual focus options, but the Irix 15mm is a close second, and is about a quarter of the price. Samyang’s manual lenses aren’t built to such a high standard, but are still robust and deliver good image quality, with the 14mm offering better value.
The Nikon 20mm and 24mm f/1.8 autofocus lenses are refreshingly compact and lightweight, but they lose out to the Sigma lenses for overall image quality, aperture speed and value for money.