I have 3 different strains purchased from this step-up filter: 58mm to 77mm, 55mm to 77mm and 62mm to 77mm. The reason was quite simple. I own many different lenses with different filter thread strengths. In order not to impoverish, I've been thinking the following system: I am considering only each a filter of a particular type to - for example, an ND filter, or a skylight or an infrared filter. And then this of the highest quality. To this then use a filter at all the lens I use the adapter above. Now about this product. This adapter is of the highest quality. I tested all three and all work perfectly. Nothing hooked, jammed or rattles. Everything is absolute top quality. What material the adapter are, I could not tell. But they are very firm and hard - make me the impression of anodized aluminum. In short: a great product at a very reasonable price.
