AGFA 307 - Manual (Page 38)

Chapter 2 Focus Details Focus Signals
Focus Signals
The focus signals appear at the base of the viewfinder when the
shutter is pressed partway down.
The color of the focus signal indicates the focus situation.
Focus Signal
Glows Green: Focus is confirmed and locked.
Glows Orange: Continuous autofocus; focus is confirmed.
Glows Red: Focus is not possible (shutter locked). Your
subject is too close or is one of the special
focusing situations described on the next page.