Very good. They do what they should; get used to them and your camera settings and create some outstanding results.
28/02/2016
I'm really pleased with this product, it does the job & the filters are high quality, I can't recommend them enough!
14/07/2015
As posted on Amazon.com these Filters are PLASTIC and NOT "High quality product made of import optics glass and resin" - the plastic is very thin and flimsy. Shame really as they have been placed in what appears to be a solid metal ring.I haven't used them yet, and I'm concerned that they will scratch very easily - more so than a Glass Filter would. I may return and seek an alternative.
20/03/2015
So glad I bought this. There is very little colour cast with no noticeable reduction in sharpness or clarity when using these filters. They are ideal for getting slightly longer shutter speeds in order to capture motion in your pictures. The included lens pen/brush is an excellent little tool which takes up next to no room in my bag so is always with me as are the filters which come in a handy little pouch. If you want to try your hand at longer exposures but don't want to spend a fortune on expensive filters then these are what you should seriously consider.
13/11/2014