+++ATH0 wrote in
:

On 2018-08-14 09:08, nospam wrote:
In article , NY
wrote:

One other factor to bear in mind: the depth of field varies with
lens focal length, not field of view of the subject.

actually, it's aperture.

actually, it's the ratio of focal length to aperture.

That is correct. For any given focal length, the smaller the aperature, the
greater the depth of field. That is why pinhole cameras focus from closeup
to infinity without a lens.