I've got some infos about this app that you may find useful
Quote:
Autofocus has been disabled in Vignette, instead you can focus by long
pressing any of the shutter buttons. The reason for this behaviour is
that a cameraphone has a very small aperture, and therefore a very
large depth-of-field, and so focusing is often unnecessary - so you
can take a picture quickly by tapping the button, or autofocus when
time allows by holding the button for longer.
|