3-D 45 x 107 format 6 x 13 format 7 x 13 format 8.5 x 17 format 9 x 12 format 9 x 14 format 9 x 18 format Achromatic lens Additive colour Album stereoscope Albumen print Ambrotype American stereoscope Amphitype Art Nouveau Autochrome Beckers-type stereoscope Bidirectional navigation Binocular camera Binocular disparity Binocular vision Binocular-style stereoscope Blinder Book stereoscope Box pattern stereoscope Box-type stereoscope Boxed stereoviews Brewster pattern stereoscope Brewster-type stereoscope Calotype