Nailed it ! A depth of field hack for mobile phones

I'm just fussing about at B&Q looking for washers of all things and something just occurred to me ... A hack.

Here is how you get depth of field from your mobile phone. Get in the face of the thing you want to take a picture of, focus, and the pull back (but not too far) and snap away.

Its nothing new .. this is me wasting time as I wait for some help with the washers ... I'm not even sure what they are for !