Optoma HD82 User Manual - Page 29

English User Controls Noottee Each I/O has differ- ent setting of "Overscan". LBX: This format is for non-16x9, letterbox source and for users who use external anamorphic lens to display 2.35:1 aspect ratio using full resolution. Detail informations about LBX mode : 1. Some Letter-Box DVDs are not enhanced for 16x9 TVs. In this situation, the image will not look right when displayed in 16:9 mode. In this situation, please try to using the 4:3 mode to view the DVD. If the content is not 4:3, there will be black bars around the image in 16:9 display. For this type of content, you can use LBX mode to fill the image on the 16:9 display. 2. If you use an external anamorphic lens, this LBX mode also allows you to watch a 2.35:1 content (include Anamorphic DVD and HDTV film source) that support anamorphic wide is enhanced for 16x9 Display in a wide 2.35:1 image. In this case, there are no black bars. Lamp power and vertical resolution are fully utilized. Overscan Overscan function removes the noise in a video image. Overscan the image to remove video encoding noise on the edge of video source. Edge Mask Press the to reduce the size of an image. Press the to magnify an image on the projection screen. V Image Shift Shift the projected image position vertically. V Keystone Press the or to adjust image distortion vertically and make a squarer image. 29