Faltus, Georg Fanfold stereoscope Fay, Alexis Feldstereo Ferrier père, fils & Soulier Ferrotype Film stereoview Filmoscope Fitaskop Fixed focus Floor standing stereoscope Focus Folding stereoscope Format Fouquet Fouquet patent Frame adapter Francia French tissue Frith, Francis Frosted glass Fruchier & Pottier Fruchier & Toussaint Gaumont, Léon Gelatin silver negative Gelatin silver print Gibbons patent Glass stereoview Glosser patent Glyphoscope Grand Parlor Stereoscope Graphoscope Graphoscope Negretti & Zambra Great Exhibition of 1851