The Bakelite front door is part of the bellows' self-erecting mechanism, and is reinforced with a metal plate to mount the folding struts. the door carries a tripod bush and a folding leg; a second tripod bush for landscape format pictures is mounted in side. When unfolded the lens standard position is fixed.
The Raven has a focusable 1:6.3 F=4in Kershaw Anastigmat triplet lens, a self-cocking dial-set shutter with three speeds, 1/25, 1/50, 1/100 plus T and B, aperture stops from f6.3 to f22, a reflecting "brilliant" type finder and a collapsible two-frame finder.
- the photos show f6.3, but McKeown lists it as having an f4.5