-  When the kaper has no video feedback, the field 
                    of view of the camera can be estimated.
                    
-  
                    
- The first step is to draw the main lines and set the 
                    position of the camera and of the target.
                    
- Then name the main dimensions and angles.
                    
- "Nacelle a l'applomb" means "rig vertically 
                    over".
                    
-  
                    
- From that, calculations can be done, or figure can be 
                    drawn as scaled.
                    
-  
                    
- Hereunder B&W pages were drawn in the booklet about 
                    kap which I published in 1995 and which can be used as is 
                    or as examples. 
                
          
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