Question about ITT Night Mariner 160 Monocular

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Itt night quest 150

I have a itt night quest 150 gen 2. i just obtained it and i can see fine in the dark, but i notice a darker shaded cresent shape on the right. it is not cosmetic blemishes. the right side of the tube it darker than the left. is this normal or is the tube going out. thanks

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  • rangerman50 Sep 04, 2008

    I also have an itt night quest 150, and it shows a darker crescent shape in the eyepiece. I can't find any blemish, or other problem with the glass. I've cleaned the surface carefully, but I have not gotten rid of the shadow.


2 Answers

Sounds like the image tube may have shifted in its mounting? This sometimes occures when the night vision has been subjected to an impact or dropped sometime in its life. Repair is not cost effective for a 150 / Gen2.

Posted on Sep 26, 2008

Not sure if this applies, but this is on the Morovision site: Because of the manufacturing processes, all night vision image tubes will have different cosmetics such as small spots or specs, photocathode coloring, or a chicken wire effect from the microchannel plate. Most cosmetics are only noticed during viewing in high light situations such as viewing with the daylight filter on in a lit room. Most cosmetic blemishes are not noticeable during normal nighttime operation but may still be seen to some degree in certain situations. These cosmetics in no way effect the performance of the image tube and do not decrease the ability to perform nighttime tasks.

Posted on Sep 24, 2008

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