THE BOOK 'OF THE LANTERN, 259 



HAND CAMERAS. 



Photographic negatives for lantern slides should be 

 rather less dense than those used for ordinary printing 

 upon paper : hence it is better to take negatives for the 

 purpose than to utilise others which have been taken for 

 ordinary reproduction. The lesser density must be gained 

 by stopping the development judiciously, and not, of 

 course, by checking the exposure. There are many 

 cameras now to be had which take small negatives suitable 

 for lantern work. These are so compact and self-contained 



FIG. 68. 



that they require no stand, focussing-cloth,, or other adjunct, 

 and will readily pack away in a portmanteau or box 

 without inconvenience to the traveller. The author has 

 used a camera of this description with great advantage, and 

 has taken many dozens of instantaneous pictures with it. 



A useful form of hand-camera introduced by the 

 Stereoscopic Company is here shown (see fig. 68), 



s.2 



