. The book of photography; practical, theoretical and applied. hismanner, care will have to be exercised inseeing that the right-hand picture isplaced on the right-hand end of thestereoscopic mount, and the left-hand pic-ture on the left-hand end of the this, what is known as a pseudo-scopic effect will be produced when thepictures are examined in the stereoscope, objects in the composition that shouldoccupy a remote distance appear in theforeground, while objects that shouldstand in the foreground recede. Underthese conditions, concave becomes con-vex, and vice versa. To pre


. The book of photography; practical, theoretical and applied. hismanner, care will have to be exercised inseeing that the right-hand picture isplaced on the right-hand end of thestereoscopic mount, and the left-hand pic-ture on the left-hand end of the this, what is known as a pseudo-scopic effect will be produced when thepictures are examined in the stereoscope, objects in the composition that shouldoccupy a remote distance appear in theforeground, while objects that shouldstand in the foreground recede. Underthese conditions, concave becomes con-vex, and vice versa. To prevent error inmounting, it is therefore necessary tomark the pair of prints in some should be done before the doublephotograph is separated. Place it on thetable face uppermost, with the subjecterect, and then turn it over withoutinverting it. On the left-hand end andback of the print mark L, and on theright-hand end mark R. They may nowbe numbered in pairs and cut apart, whenit will only be necessary to refer to theletters on the back when


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectphotography, bookyear