Optoma HD50 User's Manual - Page 32
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User Controls Display Noottee • Auto235, Auto235_ Subtitle (When 12V Trigger is set to Auto235). • When Auto235 feature is selected the 12V trigger will send power to the anamorphic lens if the source format is 2.35:1. It will not send the power when the source format is 4:3 or 16:9. Format Use this function to choose your desired aspect ratio. 4:3: This format is for 4x3 input sources not enhanced for Wide screen TV. 16:9: This format is for 16x9 input sources, like HDTV and DVD enhanced for Wide screen TV. LBX: This format is for non-16x9, letterbox source and for users who use an external 16x9 lens to display 2.35:1 aspect ratio using full resolution. Native: Depends on the resolution of the input source - No scaling is performed. Input Signal Screen Appearance 4:3 Format or 16:9/16:10 Format LBX Format Native 3 Auto235: Automatically selects the appropriate display format. Auto235_Subtitle: When the 2.35:1 format is detected, the projector scales up the image size and leave a dark area at the bottom for subtitle. 32