The PolarPro LiteChaser Filter System is a nice way to add a circular polarizer into your workflow, but there are some flaws.

The cameras in modern smartphones are getting better and better. It’s no wonder that many people are ditching their dedicated cameras. One area that mobile photography needs help is in the accessories department. PolarPro has been making filters for traditional lenses for a long time, and they have decided to branch out into the mobile arena with their PolarPro LiteChaser filter system.
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https://www.thephoblographer.com/2020/06/02/review-polarpro-litechaser-filter-system-photography-kit/