depth of field

[ruffdog64]

When taking a photo using say 1.8 app what is the actual measurement when going to the next stop ,I ask because it's nice having an old background but on portraits I would still like a blurred background but more of the shot in focus ,I hope this makes sense

 

[artyman]

It depends on the focal length of the lens. You may find this site helpful http://www.dofmaster.com/dofjs.html

 

[ruffdog64]

It depends on the focal length of the lens. You may find this site helpful http://www.dofmaster.com/dofjs.html

Thanks stan