Voigtländer Ultron 40mm f/2 Aspherical SL IIs

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Prime lens

A prime lens by Voigtländer for Full frame cameras, 40mm f/2.

What it frames like

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

How wide 40mm sees on each sensor it covers.

f/2 wide open, to scale against f/1.4.

On full frame (Nikon F): as marked, 40mm.
On APS-C (Nikon F): like 60mm on full frame; f/2 gives about the depth of field of f/3 there.

See what it frames: its view on the Nikon D780 at any distance, and its depth of field, drawn to scale.