Blackmagicdesign Video Assist Installation And Operation Manual page 12

You can choose from the following frame guides:
HDTV
Displays action and title safe regions of your image within a 1.78:1 aspect ratio compatible with
16:9 HD television and computer screens.
4:3
Displays the 4:3 aspect ratio compatible with SD television screens, or to help frame shots
when using 2x anamorphic adapters.
2.40:1, 2.39:1 and 2.35:1
Displays the broad widescreen aspect ratio compatible with anamorphic or flat widescreen
cinema presentation. The three widescreen settings differ slightly based on the changing
cinema standards over time. 2.39:1 is one of the most prominent standards in use today.
1.85:1
Displays another common flat widescreen cinema aspect ratio. This ratio is slightly wider than
HDTV, but not as wide as 2.39:1.
Grid
The grid feature displays a 'thirds' overlay with two vertical and horizontal lines placed in each
third of the image. Tap 'on' or 'off' to view or hide the thirds overlay.
Thirds are an extremely powerful tool to help compose your shots. For example, the human eye
typically looks for action near the points where the lines intersect, so it's helpful to frame key
points of interest in these zones.
TIP An actor's eyeline is commonly framed along the top third of the screen, so
you can use the top horizontal third to guide your framing. Thirds are also useful
to maintain framing consistency between shots.
2.39:1 frame guides are useful for framing shots to suit a popular
flat widescreen cinema format.
Settings 12