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Prism for long distance measurement  

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RPlumb314
Posts: 294
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(@rplumb314)
250+ posts
Joined: 8 years ago

This reflector should do the job 😀 --

Apollo 11 14 15 laser reflector

Good article, too--

https://www.jpl.nasa.gov/news/news.php?feature=7463

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Larry Scott
Posts: 626
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(@larry-scott)
500+ posts
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Just about any reflector can tap 1500 ft. 

I have 3 big older Lieca triples that stack into a 9 glass array. A triple hits 1000 m. And the 9 glass easily hits 2000 m with a Topcon GTS3B, and HP3805 3000 m. 

Just Be sure to determine the offset of any older mirror. I have 28, 30, and 70 mm. 

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