![Amazon.com : Kolari Vision Infrared Lens Filter – High-Transmission Infrared Optical Glass | Dust, Smudge, and Scratch Resistant (55mm, K665) : Electronics Amazon.com : Kolari Vision Infrared Lens Filter – High-Transmission Infrared Optical Glass | Dust, Smudge, and Scratch Resistant (55mm, K665) : Electronics](https://m.media-amazon.com/images/I/71VVqL-TFcL.jpg)
Amazon.com : Kolari Vision Infrared Lens Filter – High-Transmission Infrared Optical Glass | Dust, Smudge, and Scratch Resistant (55mm, K665) : Electronics
![Smudge / coating on inside glass. I have no idea how it happened. It shows up in photos when zoomed out to the 28. It has gotten bigger over the last two Smudge / coating on inside glass. I have no idea how it happened. It shows up in photos when zoomed out to the 28. It has gotten bigger over the last two](https://preview.redd.it/smudge-coating-on-inside-glass-i-have-no-idea-how-it-v0-cgdewa02qho91.jpg?width=640&crop=smart&auto=webp&s=9368930ee670263a57b581c6bbd69ee289b69e6b)
Smudge / coating on inside glass. I have no idea how it happened. It shows up in photos when zoomed out to the 28. It has gotten bigger over the last two
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![Lens coating damage? I tried cleaning with a q tip and and my breath and it started to smudge so I added a tiny bit of alcohol to remove the smudge. After Lens coating damage? I tried cleaning with a q tip and and my breath and it started to smudge so I added a tiny bit of alcohol to remove the smudge. After](https://preview.redd.it/l3r7fzm4rj981.jpg?auto=webp&s=b49e3d81686abc0fdc03ad1d85434ce29137241c)