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          Product Description
          
					
          
						
          
							
          
								
									Introduction
								
							
          
							
							
          
                                
                                    
                                    Datasheet
                                
                            
          
                            
          
                                
                                    STEP
                                
                            
          
							
          
								
							
          
							
          
								
          
									
								
          
								
							
          
					
          
					
            
						
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            Model：TTL28.5-25-50F
            
						
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            Brand：Optiger
            
						
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            Series：German Designed Optiger TTL28.5 Series
            
						
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            Lens Type：Bi-telecentric Lens
            
						
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            FOV：25
            
						
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            AOV：/
            
						
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            Focal Length：/
            
						
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            Image Circle：
            
						
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            Pixel：/ 
            
						
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            Working Distance：50±5
            
						
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            Mount：F
            
						
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With high telecentricity and low distortion, OPTIGER bi-telecentric lenses are mainly applied to precision measurement and high-precision visual positioning fields.
          
 OPTIGER TTL28.5 Series Standard Bi-telecentric Lenses are standard F-mount lenses, available for industrial cameras with maximum sensor size of APS-C (diagonal of 28.5mm). 

          
	
          

          

          
	 

          

          
	 >>Optical magnification:0.920x-0.073x 

          
 

          
	 >>FOV: 25mm -315mm, satisfying different requirements on field of view

          

          
	 >>WD: 50mm-545mm, satisfying different requirements on working distance

          

          
	 >>Distortion: <0.05%, telecentricity: <0.05°

          

          
	 >>Bi-telecentric design, very deep DOF, high resolution

          

          
	 >>Multi-layer coating, high transmittance

          

          
	 >>IP 65 for use in harsh industrial environments

          

          
	 >>Options between high resolution and deep DOF are available, satisfying different

          

          
	 >>Customized aperture is available

          

          
	 >>Working distance can be adjusted within certain limits as per customers’ requirements 

          
           

          
	
          

          

          
	 

          

          
Specifications
          

          
	
		
          
			
				
          
					Type 
				
          
			          		
			
				
          
					Lenses with High Resolution 
				
          
			          		
			
				
          
					Lenses with Deep DOF 
				
          
			          		
		
          
		
          
			
				
          
					Model 
				
          
			          		
			
				
          
					TTL28.5-25-50F 
				
          
			          		
			
				
          
					TTL28.5-25-50F-D 
				
          
			          		
		
          
		
          
			
				
          
					Max. FOV（mm） 
				
          
			          		
			
				
          
					28.5 
				
          
			          		
			
				
          
					28.5 
				
          
			          		
		
          
		
          
			
				
          
					Magnification 
				
          
			          		
			
				
          
					1.140 
				
          
			          		
			
				
          
					1.140 
				
          
			          		
		
          
		
          
			
				
          
					Working Distance（mm） 
				
          
			          		
			
				
          
					50±5 
				
          
			          		
			
				
          
					50±5 
				
          
			          		
		
          
		
          
			
				
          
					APS-C 
				
          
			          		
			
				
          
					H 
				
          
			          		
			
				
          
					22.36 
				
          
			          		
			
				
          
					19.61 
				
          
			          		
			
				
          
					19.61 
				
          
			          		
		
          
		
          
			
				
          
					V 
				
          
			          		
			
				
          
					16.77 
				
          
			          		
			
				
          
					14.71 
				
          
			          		
			
				
          
					14.71 
				
          
			          		
		
          
		
          
			
				
          
					D 
				
          
			          		
			
				
          
					27.95 
				
          
			          		
			
				
          
					24.52 
				
          
			          		
			
				
          
					24.52 
				
          
			          		
		
          
		
          
			
				
          
					28.5mm 
				
          
			          		
			
				
          
					H 
				
          
			          		
			
				
          
					22.80 
				
          
			          		
			
				
          
					20.00 
				
          
			          		
			
				
          
					20.00 
				
          
			          		
		
          
		
          
			
				
          
					V 
				
          
			          		
			
				
          
					17.10 
				
          
			          		
			
				
          
					15.00 
				
          
			          		
			
				
          
					15.00 
				
          
			          		
		
          
		
          
			
				
          
					D 
				
          
			          		
			
				
          
					28.50 
				
          
			          		
			
				
          
					25.00 
				
          
			          		
			
				
          
					25.00 
				
          
			          		
		
          
		
          
			
				
          
					Effective F number 
				
          
			          		
			
				
          
					9 
				
          
			          		
			
				
          
					16 
				
          
			          		
		
          
		
          
			
				
          
					Object Side Resolution（μm） 
				
          
			          		
			
				
          
					5.30 
				
          
			          		
			
				
          
					9.42 
				
          
			          		
		
          
		
          
			
				
          
					DOF（mm） 
				
          
			          		
			
				
          
					0.55 
				
          
			          		
			
				
          
					0.98 
				
          
			          		
		
          
		
          
			
				
          
					Measured Telecentricity（°） 
				
          
			          		
			
				
          
					<0.05 
				
          
			          		
			
				
          
					<0.05 
				
          
			          		
		
          
		
          
			
				
          
					Measured Distortion（%） 
				
          
			          		
			
				
          
					<0.05 
				
          
			          		
			
				
          
					<0.05 
				
          
			          		
		
          
		
          
			
				
          
					Lens Mount 
				
          
			          		
			
				
          
					F 
				
          
			          		
			
				
          
					F 
				
          
			          		
		
          
	          

          

          
 

          
	OPTIGER is specialized in the manufacture of industrial lenses designed by German  

          

          
	companies.With high-precisionbi-telecentric lenses as its core products,OPTIGER’s  

          

          
	products line also includes FA prime lenses,zoom lenses,etc. R&D and manufacture  

          

          
	tailored to customers’requirements are available. 

          

          
	http://www.www.dinnerwithcher.com/en 

          

          
	
          
           

          

          
				
          
				
				
          
					
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