A folding reflex monocular viewer for Wista's technical cameras, this adds only the teeniest bit of depth to the camera when collapsed. This can be comfortably used without the magnifier attached as essentially a waist-level finder, or put the magnifier in place to gain critical judgement of the center sharpness. Images are rendered rightside up and laterally reversed.
Included is a fresnel lens which works wonderfully with wideangle lenses using either Wista's own focusing screen or a Beattie intenscreen. Remove the fresnel lens for the best conditions when using focal lengths longer than about 200mm.