Blackmagicdesign Mini Converter Installation And Operation Manual page 38

Mini Converter UpDownCross
38
The Clamp Video output is permanently selected to ensure
legal video levels
You've probably noticed switches 8 and 7 share settings for up and down conversions. This is because
aspect ratio settings are determined by the output settings. For example, if you have switches 3 and
2 set for 1080i50 HD output, and processing switch 1 set to ON, Mini Converter UpDownCross will
automatically set switches 8 and 7 for down conversion.
Below is a description for each aspect ratio conversion:
Down conversion:
Letterbox: This setting scales the entire 16:9 HD image into a 4:3 SD frame without squeezing,
leaving black bars on the top and bottom.
Anamorphic: This setting horizontally squeezes the 16:9 HD image into a 4:3 SD frame.
Center Cut: This setting cuts a 4:3 SD frame from the 16:9 HD image. This aspect ratio
setting discards a portion from each side of the 16:9 image.
Up conversion:
4:3 Pillarbox: This setting displays 4:3 standard definition inside a high definition 16:9 frame.
Black bars feature on the sides.
14:9 Pillarbox:
This setting is a compromise between 4:3 pillarbox and 16:9 zoom. The standard
definition 4:3 image is slightly zoomed into, allowing more image in the 16:9
frame and reducing the amount of black bars on the sides, but slightly losing
the top and bottom.
16:9 De-Squeeze: This setting de-squeezes the standard definition 4:3 anamorphic image until
it completely fills the 16:9 frame. None of the 4:3 image is lost.
Blackmagic Converter Utility Settings
The Clamp Video output to legal levels setting is permanently selected to ensure your SDI conversion
provides legal levels and an accurate representation of the SDI input.
Switches 3 and 2 - Output Format
Combinations of switches 3 and 2 set your up, down or cross conversion output format or standard. For
example, if you input 625i50 SD PAL video, setting switches 3, 2 and 1 to the ON position will output
1080i50 HD video. A conversion table is provided below.