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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Refurbish or not? (1 Viewer)

Peter Ericsson

Well-known member
My Nikon 82 mm ED is no longer crisp. I wonder is it possible that the coating wears off or is it simply no longer up to standard? Next to my new Opticron MM3 50 it is like looking through a dim glass.

Is it possible to refurbish a scope like this? Is the problem with the lens or the eyepiece (fixed 30x)?

Not sure what to do with it at this point.

Peter
 
I'm sure Nikon can fix it (here in the USA it would be free under warranty, or $20 otherwise), but perhaps it is first worth inspecting everything under bright sunlight or with a bright pen light. Unscrew the eyepiece and inspect all elements of it and the scope to find out where the moisture, fungus, or other hazed elements are located. If moisture got between the eyepiece and body, you could be lucky and fix everything by cleaning the glass that seal the body in front of the eyepiece, or the lens of the eyepiece that receives light from the scope body. Probably you will not be so luck and it will turn out to be moisture or other damage on a prism face.

--AP
 
How do you know that nitrogen is gone, and how can we avoid that?
Peter, did you use it too extensively during those 8 years?
Did you contact Nikon?
 
I once had the scope come totally apart in the middle. It was laying in the trunk of the car and the vibrations caused a couple of internal screws to come loose. Nikon in Bangkok didn't have any nitrogen to put back into it.
 
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