Bests & Worsts Reviews from Amazon

I bought both the AmazonBasics and Altura Circular Polarizer. Both are effective. I feel like the Amazon version threaded on to the lens easier. Possibly because the ring is considerable wider. There was no vignetting on a 24-105mm at 24mm with either filter. Attachment compares AmazonBasics, Altura and No Filter. Shot as Large Jpeg, no editing in post. To my eye, the Altura imparts a slight green tone. I liked the packaging on the Amazon version - the case has indentations/rings to keep the filter from flopping around when in the bag. Between the Amazon and Altura, I would select the Amazon version.