Sigma 12-24mm f/4 DG HSM Art

Not on this page? This site answers questions: try /ask/what-is-the-sigma-12-24mm-f-4-dg-hsm-art-good-for, or write any question as words after /ask/.

Zoom lens

A zoom lens by Sigma for Full frame cameras, 12-24mm f/4.

What it frames like

Its full-frame-equivalent focal length on the sensor it was made for.

How wide 12mm sees at its wide end on each sensor it covers.

f/4 wide open, to scale against f/1.4.

On full frame (Canon EF, Nikon F): as marked, 12-24mm.
On APS-C (Nikon F): like 18-36mm on full frame; f/4 gives about the depth of field of f/6 there.
On APS-C (Canon) (Canon EF): like 19-38mm on full frame; f/4 gives about the depth of field of f/6.4 there.