Sony DCR-TRV50 Operating Instructions (primary manual) - Page 61

Advanced Recording Operations Using special effects - Digital effect You can add special effects to recorded pictures using the various digital functions. Sound is recorded normally. STILL You can record a still image so that it is superimposed on a moving picture. FLASH (FLASH MOTION) You can record still images successively at constant intervals. LUMI. (LUMINANCE KEY) You can swap a brighter area in a still image with a moving picture. TRAIL You can record the picture so that an incidental image like a trail is left. SLOW SHTR (SLOW SHUTTER) You can slow down the shutter speed. The slow shutter is good for recording dark pictures more brightly. OLD MOVIE You can add an old movie type atmosphere to pictures. Your camcorder automatically sets the wide mode to ON and picture effect to SEPIA, and sets the appropriate shutter speed. Still image Moving picture STILL LUMI. Still image Moving picture 61