I'd definitely not use RainX
I used it on 2 scopes about 10 years ago on a foggy morning. A couple weeks later both scopes fogged up inside. I guess it ate the seals.
If my people, who are called by my name, will humble themselves and pray and seek my face and turn from their wicked ways, then will I hear from heaven and will forgive their sin and will heal their land. 2 Chronicles 7:14
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