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Optics part?


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Bob Saunders

I mentioned this here and have had it a long time. Tube with green target lens no markings.     
Possibly a  surveyors instrument part.  Green target that rotates. I coupled it to my phone and then did a grey scale image. Any ideas on maker or use? 

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Bob Saunders

I removed the screw and cleaned the optics and dirty barrel lube. The screw hold a piece in the groove for focus. Then stopped by a survey company, and found it not used in that field. He thought maybe industrial or military? After focusing I can read the numbers on the first 46 KV power pole way down. Cell phone images

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Bob Saunders
Just now, Bob Saunders said:

I removed the screw and cleaned the optics and dirty barrel lube. The screw hold a piece in the groove for focus. Then stopped by a survey company, and found it not used in that field. He thought maybe industrial or military? After focusing I can read the numbers on the first 46 KV power pole way down. Cell phone images, the green filter would be to enhance black and white film.

20211110_140527_HDR b.jpg

 

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