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Review Summary
2013-06-01T21:00:00
Wouldn't thread past about an eighth of a turn on a Sony 16-50. No clearance issues, the threads are just bad. Got a different brand which worked fine, so it's definitely this ring, not the lens.
photomi
Allows you to use larger size filters on lenses with a smaller diameter thread. The first number is the size that screws into the lense, the second number is the filter size.