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prism binoculars

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prism binoculars [′priz·əm bə′näk·yə·lərz]
(optics)
A type of binoculars, each half of which is a Kepler telescope that employs a Porro prism erecting system both to erect the image and to reduce the length of the instrument. Also known as prismatic binoculars.
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I recommend Roof Prism binoculars all the way (the one with straight barrels).
A closer look at your binoculars by Beachy, Edward / Countryside & Small Stock Journal
Acadia roof prism binoculars are available in 8x42mm or 10x42mm models.
Optics & scouting tools by Petersen's Bowhunting
Porro prism binoculars use a double prism in a Z-shaped pattern to erect the reflection.
Understanding Binoculars Made Easy by Chad Milhouse / Arts and entertainment industries community
 
 
 
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