From: tenentelui@gmail.com   
      
   Hey, folks.   
   This thread is now 21 years old.   
      
   Lemme ask ya something. Yall kinda agreed IR detection has greater range than   
   visible light. However, I assume IR scopes follow the same principles as   
   visible light scopes - it's all EM. When dealing with a visible light   
   telescope, if the angular    
   resolution can't resolve the target size as 1 pixel, it's out of range, right?   
      
   The same principle should apply to IR sensors, except visible light wavelength   
   averages at 500nm and near-IR at 5000. Since angular resolution =   
   wavelength/diameter of aperture, angular resolution of IR sensors of the same   
   diameter should be 10 times    
   bigger (10 times worse) than visible light systems. Why doesn't the range drop   
   too?   
      
   I know, I'm not considering the amount of light picked up (there are many more   
   IR photons than visible photons), which causes the thinned array curse. But   
   why does that affect the Dawes limit of the scope? A point is still a point.   
      
   Thanks!   
      
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