Forum: Troubleshooting and Beginner Help
10-31-2012, 05:14 AM
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Having read that one way to tell the difference is that a linear polarizer looks the same in either orientation, sounds like the 58 is a linear polarizer. My CPLs both behave like your 52.
You might want to experiment with it on the camera before deciding whether or not to replace it. Question is whether or not you can find any conditions under which autofocus fails.
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