Apparatus (204) for optical manipulation of a pair of landscape
stereoscopic images, such that the side-by-side orientation needed by a
pair of human eyes is reoriented to an orientation which is required for
recording with a single camera. The apparatus comprises three periscopes
(108, 124, 130), two of which are horizontally oriented and one which is
vertically oriented. The side-byside view is reoriented to an arrangement
with one picture above the other. To achieve this one side view is
reflected by one horizontal periscope (108) with first and second
reflectors (120, 122) to an upper picture position. The other side view
is reflected by the vertical periscope (124) with third and fourth
reflectors (126, 128) to a lower position, where another horizontal
periscope (130) with fifth and sixth reflectors (132, 134) reflects the
other side view of a lower picture position. Thus, the optical axis exit
the third periscope (130) below the optical axis exit of the first
periscope (108). The pictures may be recorded without rotating. The
apparatus may be used to view pictures which are recorded one above the
other.