K&F Concept 11-Piece Filter Adapter Set, Step Down Ring Set 30-26, 37-30, 43-37, 52-43, 55-52, 58-55, 62-58, 67-62, 72-67, 77-72, 82-77 mm, Step Down Adapter Reducing Filter Adapter for Canon Nikon

Muy prácticos,si quieres aprovechar tus filtros en objetivos de distintas medidas,van fenomenal. Eso sí, no poner con unas diferencias de diámetro muy grandes, ya que se verán los bordes en gran angular.

Very handy stuff and helps a lot. The quality is pretty good. The only thing i miss with these rings are up to 105mm. There are only one problem with these rings: It can be stuck in each other and hard to remove, so be careful when you are tightening the rings, or else you can get a really difficult task to release the ring from each other. I have tried lots of these rings, but K&F Concept has the best quality and i recommend this mostly.

These step-down rings are exactly what I was looking for. They are high quality at a reasonable price. All K&F products that I have ordered have been exactly as described.

コスパ最高、精度も問題ないです。　ただし全部は使うチャンスはないと思うので、欲しいサイズを探して買われるのが良いと思います。

Good decent quality. They’re a perfect fit as to the size on the side of each ring.