With prices for the K&F Concept Variable Fader ND 1-8.6 filter starting at just $20 for the smallest 40.5mm version and only going up to a still very affordable $30 for the most expensive 82mm model, it’s easy to see why this is one of the most popular Variable ND filters on the market.
But can a product so cheap still be a quality item? I recently got hold of one, as well as its more premium (and more expensive) sibling: the K&F Concept Nano-X Variable ND Filter ND2-400. In this review I put the K&F Concept Variable Fader ND Filter 1-8.6 through its paces to see if you should buy one, or whether it’s worth splashing out for its beefed up brother.
