F/ratio ? 2.34                                                                  
Focal length (mm)? 30                                                           
Select film/image format:                                                       
   (1) 35-mm                                                                    
   (2) 120 square                                                               
   (3) 4 x 5                                                                    
   (4) 8 x 10                                                                   
   (5) Special area                                                             
   (6) Fisheye (180 deg)                                                        
Selection? 1                                                                    
Sky area (sq deg):  2700                                                        
Efficiency   54.2                                                               
                                                                                
Another (y or n)? n                                                             
