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7artisans 18mm f 5 6 vs sigma 17mm f 4 dg contemporary?

Both are ultra-wide primes for full-frame cameras, but they suit different shooters.

The Sigma 17mm f/4 DG Contemporary is the one I'd pick for most people. It has autofocus, a slightly wider 17mm view, and a brighter f/4 aperture. It mounts on Sony E and L-Mount only.

The 7Artisans 18mm f/5.6 is manual focus only, and it's slower at f/5.6. It also mounts on Nikon Z, so it's worth a look if you shoot Nikon and don't mind focusing by hand.

If you shoot APS-C, both lenses frame wider than they look on the box, so check the focal length converter before you buy.

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