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	- optical illusion in which an object seen through an aperture appears to shrink in apparent size as the observer approaches the aperture (en)
 
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	- The Asinelli Tower seen from the long corridor of San Michele in Bosco in Bologna, Italy. When an observer stands very near to the window at one end of the corridor the tower seems very small, while when they stand on the other end further away from the window the tower appears paradoxically enlarged. (en)
 
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	- Torre degli Asinelli vista da San Michele in Bosco.jpg (en)
 
	- Effetto Cannocchiale.jpg (en)
 
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	- 150 (xsd:integer)
 
	- 200 (xsd:integer)
 
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