Sigma 28mm f/1.4 DG HSM Art

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Prime lens

A prime lens by Sigma for Full frame cameras, 28mm f/1.4.

What it frames like

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

How wide 28mm sees on each sensor it covers.

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

On full frame (Canon EF, Nikon F, Sony E, L-Mount): as marked, 28mm.
On APS-C (Nikon F, Sony E, L-Mount): like 42mm on full frame; f/1.4 gives about the depth of field of f/2.1 there.
On APS-C (Canon) (Canon EF): like 45mm on full frame; f/1.4 gives about the depth of field of f/2.2 there.