Irony: Depth of field

[blue-glass]

Depth of field should be in the viewer's eye which means large apertures.

It should be called depth of sharpness..

[EXA1a]

Depth of field should be in the viewer's eye which means large apertures.

It should be called depth of sharpness..
... and that's exactly how it's called in German: "Schärfentiefe" (Schärfe=sharpness, Tiefe=depth).
--Jens--