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This chart lists the Speed (T-Stop) of all variations of our lenses. For video applications, use the 16mm numbers.

Lens System Format Angle of View T Stop Open T Stop Closed Available T Stops
2.8 3.3 4 5.6 6.3 8 11 16 22 32 45 64
HD Probe HD Direct View 3.3 22   x x x   x x x x      
    90 Degree 3.3 22   x x x   x x x x      
                                 
Probe II+ 16mm Direct View 3 22     x x   x x x x      
    90 Degree 3 22     x x   x x x x      
  35mm Direct View 6.3 32         x x x x x x    
    90 Degree 6.3 32         x x x x x x    
                                 
Probe II 16mm Direct View 2.8 22 x   x x   x x x x      
  35mm Direct View 5.6 22       x   x x x x      
                                 
Probe I 16mm Direct View 8 32           x x x x x    
    90 Degree 8 32           x x x x x    
  35mm Direct View 16 64               x x x x x
    90 Degree 22 64                 x x x x
                                 
6000 16mm Direct View 28 28 Fixed T-28 with Built in Ring Light
    45 Degree 28 28
    90 Degree 28 28
  35mm Direct View 45 45 Fixed T-45 with Built in Ring Light
    45 Degree 45 45
    90 Degree 45 45



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