All this happened in the instant the exposure was made, while the reflex mirror was also cycling up out of the way, then back down to the viewing position.
The shutter operation incorporates a quick-rising non-returning reflex mirror.
The operating noise from the Pellix is surprisingly similar to that of the Canon FX using a moving reflex mirror.
Johann Sturm (Germany) described first known use of a reflex mirror in a camera obscura.
The manually levered reflex mirror also served as the camera's shutter.
Lack of parallax and ability to cope with high zoom-ratio lenses, without the need for a bulky reflex mirror.
Shutter lag may be diminished, and pictures taken at a faster rate, compared to systems employing a reflex mirror.
In addition, the movement of the reflex mirror takes time, limiting the maximum shooting speed.
It is used to reverse again the upside-down and laterally reversed image coming from the reflex mirror.
Depending on the viewing position of the reflex mirror (down or up), the light from the scene can only reach either the viewfinder or the sensor.