Assertion: lens's design | /r/HasProperty | produced for cloud recording
Facets:
value: as a 17 mm f/6.3 lens
type: OTHER
Source sentences:
text: The basic patented design was produced for cloud recording as a 17 mm f/6.3 lens, and the artist known as Umbo used the AEG lens for artistic purposes, with photographs published in a 1937 issue of Volk und Welt.