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Re: Cleaning The Optics On A Surveyor's Level

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Posted by James Zdunic on May 1, 1999 22:50:22 UTC

I have to agree with Robert May. I am guessing there is an internal reticle of some type, these are usually very fragile. Without proper alignment relative to focal point and collomation, an out of center/out of focus reticle image could occur. Improper collomation of the optics could also affect the instruments precision. If the instrument is very old or has been subject to shock/vibration, it may be a good idea to have it's accuracy checked by a qualified technician usig the proper methods and equipment.

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