I am very happy with this boost ring. He has no problems either screwing it onto the camera or unscrewing it. Some rings are so tight that they cannot be removed. I don't tighten the ring either. Exactly until it starts to tighten. I've been in that boat if you have a ring or filter that you just can't remove from the camera. That's a catastrophe. It's a great price too. Considering how much they charge for a set or even a single unit, this is a great buy.
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