Binocular 101: Prisms
What binoculars are best for you?
Published:
June 23, 2008
| Many readers have written to ask which binoculars are best for stargazing: those with Porro prisms or those with roof prisms. They're easy to tell apart. Porro-prism binoculars have zigzag-shaped barrels, while roof-prism models have sleek, straight barrels. |
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