If you follow my reviews here on Amazon you could be forgiven for thinking I work for K&F Concept and that would be perfectly understandable as every time I review one of their product I eulogise about how amazing it is.
I can assure you dear readers that no money has ever changed hands, I am sent items for free to test and I say what I see, if a product is poor I won't hold back, this strap however is not!

Very well made, immaculate stitching and an easy to use quick release system that would allow the strap to be switched across cameras with ease providing you have the additional connectors required for each camera, unfortunately spares don't appear to be listed on Amazon at this time.

The strap itself is comfortable to wear providing sufficient support in all the right areas, I have tried it with both film and digital cameras of varying bulk and found no discomfort.

If I have a gripe it is that the part that affixes to the camera isn't immediately usable on certain brands, my digital cameras are from Sony and Fujifilm and both have eyelets that are too small to allow the loop to be threaded through without resorting to a wire add on loop, something I do try to avoid.
That said my 5D is a different beast and this goes straight on without issue and easily supports its considerable weight with a pro lens.

Once again a product from this company that shpoould be a market leader with the small caveat of it depending on your cameras strap mounting point.