Finally I thought when I found these I can purchase filters at a specific size and use these rings to mean I only need one. With my kit including polarising, neutral density and other filters with lenses having filter sizes ranging from around 50mm to 72mm this kit at least means I can get that number of filters down to just 2 or 3.The quality feels good with the rings being well made. Their value I haven't seen better so far so I'm happy to recommend as if like me you have multiple sizes of lens then this will be indespensible if you want to cut your costs. Some filters can cost a lot of money so this should save some.
23/09/2019
With this range of rings which both setup of set down enable one filter to fit lenses with different diamentor threads
25/08/2019