At 159$ is a bit on the high side but on sale these are excellent value at about $120
Kipon Autofocus Adapter with ND filter for Canon EOS Lens to Sony E Camera NEX
25 November 2019
Better than the competition in features, price and value.
I've tested this product very briefly and I have to say the results are amazing.
Great ease of use for a pretty good cost. Saves you from buying more expensive filters.
Id strongly recommend people buy this over other brands alternatives.