| Measurement accuracy in VIS range 1) | 
            0.1 µm | 
            0.1 µm | 
        
        
            | Lens rotation | 
            Air bearing AB 100  
            (option: lens rotation device ) | 
            Air bearing AB 300  
            (option: lens rotation device) | 
        
        
            | Sample diameter | 
            0.5 – 225 mm  
            (0.5-125 mm or  
            0.5 to 200 mm lens Rotation device) | 
            0.5 – 400 mm | 
        
        
            | Max. sample weight | 
            Max. 20 kg | 
            300 kg | 
        
        
            | Linear stage | 
            Motorized and PC-controlled4) | 
            Motorized and PC-controlled | 
        
        
            Measurement head  
            for VIS spectral range 2) | 
            electronic ACM,  
            200 mm EFL | 
            electronic ACM,  
            200 mm EFL | 
        
        
            | Light source3) | 
            High power LED light source | 
            High power LED light source | 
        
        
            | MWIR or LWIR measurement head | 
            option | 
            option |