78 



Popular Science Monthly 



ily it was constructed to enable the 

 operator, under all conditions, to take 

 a picture in a miniinuni of time. To be 

 exact, it can be mounted and trained on 

 an object in thirty seconds, which is a 

 feat impossible with the old-style appa- 

 ratus. Furthermore, it can be rotated 

 either in a horizontal or 

 a vertical position, and 

 it can take panoramic 

 pictures at any rate of 

 speed desired. These are 

 only two of many im- 

 portant features which 

 show the versatility of 

 the machine. 



The ordinary motion- 

 picture camera is limited 

 in operation to an angle 

 of forty - five degrees 

 above or below the hori- 

 zontal. It must be used 

 on a tripod, carefully lev- 

 eled. In taking pano- 



The lens and diaphragm mech- 

 anism which is automatically 

 operated from the rear 



ramie pictures, two cranks, one for the 

 horizontal movement, and the other 

 for the |)erpendicular movement, must 

 be turned simultaneously, either forward 

 or backward, according to the direction 

 of the swing required. Moreover, the 

 panoramic action is confined to rect- 

 angular movements. 



Other restrictions are 

 the awkward lens ad- 

 justments; the friction 

 of the film, which causes 

 static electricity; exces- 

 sive noise, making the 

 machine impracticable 

 for nature and wild ani- 

 mal photography; its 

 bulkiness and weight; 

 the long time rec|uired 

 to assemble it and pre- 

 pare it for operation ; the 

 lack of climate-resisting 

 qualities; the numerous 

 loose parts and acces- 



CURVEDARM 



UNIVERSAL JOINT 

 'steel SUPPORTING RING 



E.YE PIECE 

 VIEW FINDER 



DIAPHRAGM 

 DIAL 



-FOCUSSING 

 DIAL 



FILM 

 METER 



^CRANK 



PANORAMIC 

 BASE 



UB-BASE 



By guidiiii; pressure of the left hand the instrument moves on its 

 sub-base and is trained in any direction at the will of the operator 



sories, and other 

 handicaps too nu- 

 merous to men- 

 tion here. 



The camera in- 

 \ented by Mr. 

 Akeley overcomes 

 these imi)erfec- 

 t ions with a mech- 

 anism entirely 

 new. In form his 

 camera is cylin- 

 drical. It rotates 

 in a steel ring on 

 ball-bearings and 

 is supported i)\- a 

 c u r v e d arm, 

 which rises from 

 a sub-base on 

 which the pano- 

 ramic-base rests 

 when in opera- 

 tion, riie com- 

 plete ap[)aratus, 

 canu'ra antl pan- 

 oramic devices, 

 form a single 

 compact unit to 

 be used with or 

 without a tripod. 



By merely press- 

 ing the le\er at 

 the top of the 



