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Extending human vision (eye-like things) say how many and what lenses it uses

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Microscope   2 convex lenses to magnify small, close objects  
Refracting Telescope   2 convex lenses, lenses with longer focal lengths  
Reflecting telescope   1 concave mirror, 1 plane mirror, 1 convex lens  
Binoculars   2 refracting telescopes (2 convex lenses), light reflected several times to keep it short  
Camera   Camera works very much like human eye. Instead of a lens that can change shape to focus the light on the "screen",camera moves position of lens to change distance from lens to screen  


   

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