What counted as capital-ship night-fighting range

What range was considered night-fighting range for capital ships in the First World War?

Roughly 10,000 yards or less, with about 5,000 yards or less treated as point-blank range.

In a First World War context, roughly 10,000 yards or less is given as capital-ship night-fighting range. Around 5,000 yards or less is treated as point-blank gunnery range. Both are approximate figures.