The following is a simple way to make lantern slides by reduction, the ordinary camera and lens being used, supported preferably on a table: - First make a carrier to hold the lant in plate in the dark slide by tongueing together, to form a frame, two pieces of 1/8-in. wood 4 8/4 in. by l 4/8 in., and two similar pieces 6 1/2 in. by 3/4 in. Rebate the inner and outer edges on opposite sides 1/16 in. Thoroughly clean a window pane and place the negative for reduction (A) film towards the camera in one corner. Fasten in position safely with two drawing pins. Outside the window D suspend at an angle of 45°, to act as a reflector (C), a sheet of white cardboard at least four times the size of the negative. Fasten at the bottom and attach string to the two top corners. In a large sheet of brown paper B cut a hole A just large enough to expose the whole or the desired portion of the negative. Pin this up and fasten curtains across the top of the window. Build the camera up level with the boxes, focus very sharp, and expose as usual. The centre of the plate must exactly coincide with the centre of the negative, and the corners should all be equidistant, otherwise the lines will be distorted. No special lens is required.

When a clear view of the sky is obtainable, a lidless box, having an opening in the bottom capable of receiving the negative and corner pieces to prevent it falling through, may be attached to one end of a board; at the other end is the camera. The board at the box end is fastened to the window sash with eyes; the other end is suspended with string so that the negative points to the clear sky and even illumination is ensured.

Apparatus for Making Lantern Slides.