A 
REPORT OF COMMISSION V GV-87 
FILAMENT AND A 
- EDGE OF SHIELD 
N SAME PLANE 
   
  
VERTICAL AIS, 
AROUND WHICH CAMERA 
WITH LICHTS AND 
SHIELD ROTATES 
5S4 SECONDS 
- CAMERA 
DARK PORTION ILLUMINATED 
OF NEAL PORTION OF HERD 
  
SHIELD 
Fic. 2. Schematic top view of recording device. 
sections do not go through the center of the device, but through a point about 
1$" away from it. 
A gradual movement of the camera unit around the subject reveals and 
records the shape and size of head and neck, section by section. For an all- 
around portrait the camera takes ex- 
actly 400 pictures during one com- 
plete revolution around the subject. 
As the camera takes 16 pictures per 
second, one revolution requires 25 
seconds, or less than a minute. In- 
stead of posing for hours or getting 
plaster casts, little effort by the sub- 
ject is now required. 
The combined 400 pictures repre- 
sent the form and expression record. 
Some individual pictures, picked out 
at random, are given in Figure 3. 
Fach picture is a correct outline of a 
section through the subject's head 
and neck. Combined they give the 
size and shape of every feature to- 
gether with its correct location. The 
pictures give to the sculptor all in- 
formation required for making the 
portrait without seeing the subject. 
No measurements of the subject 
are taken when making the record. 
The subtle facial expressions, which 
generally last only for a few moments, 
cannot be measured by tools or mem- 
orized by the sculptor. But with the 
motion picture camera, its high speed 
lens, and its sensitive film, these ex- 
pressions are easily recorded. Plaster 
casts from life are now entirely obso- 
  
lete. 
There is nothing complicated Fic. 3. Pictures from form and 
about making a photographic form expression record.