Works very well. Would get 5 stars but the included caps are loose and fall off, it works with most of my lenses except my 1st gen Tamron 150-600mm, my biggest complaint is that there is play and you feel it with the lens attached can if you rotate it The lens. Shooting with a tripod or monopod attached to the lens, sometimes even handheld, may cause malfunctions. The price and pros outweigh the cons and it's worth the money, but be aware that it's not perfect.
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