Assertion: tripod | /r/HasAspect | a center column
Facets:
Source sentences:
text: If your tripod has a center column, you should only extend it as a last resort when you absolutely need the extra height.
text: Some tripods have a centre column that will flip out and allow you to do this.
text: If the tripod has a center column or, if the legs reverse, usually that space is minimal, but it is certainly still there.