According to one aspect, the invention is directed to a focusing information visualization device that visually displays focusing information of {HEAD ~ a photographic image} on {TAIL ~ a screen} 
According to one aspect , the invention is directed to a focusing information visualization device that visually displays focusing information of { HEAD ~ a photographic image } on { TAIL ~ a screen }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL