Excellent filter for the price. I think every lens should have a polarizing filter, so bought this for my new lens. I can't tell you how nice the glass is....just buy it and see what you think. I don't think that you will be disappointed at this price-point!
16/08/2020
As a budget item I'm pleased with the filter as a keep in the bag when you don't want to carry your full filter kit. I did find that it produced a cross effect at maximum in certain light conditions but when used judiciously it's a perfectly functional CPL. Sharpness and and vignetting are very good.Would definitely buy again if lost.
03/07/2020
If you want to start doing long exposure photos then an ND filter is needed. Having a variable ND filter such as this one is a plus because it gives your more flexibility with adjusting your exposure. Unlike other filters that often leave an x mark in the picture, this one is clear of that. I love that it is weather sealed as well. I actually use ND filters for mid-day portrait shoots as another option to control my exposure. ND filters can be pricey but at this price, definitely worth investing in.
18/05/2020
I have taken some spectacular photos. The problem is that after a while the exterior filter coating has a smudge that cannot be cleaned with anything. Secondly, it is not weather sealer as they claim. Mine has dust specs in between the col and nd. I have to remove them in post processing.
16/05/2020
I've been in the video business for over 10 years and I've only used Tiffen filters. I have a variable ND filter 77mm and 57mm along with CP's and a set of ND filters. Having to screw on the CP along with the ND was a huge pain. but with these filters with the built-in CP is amazing. The design is nice and the feel is great while twisting. I love the fact that it has the white dots on the side of the filter to help keep multiple cameras exposure on point. I highly recommend this product!
14/05/2020
Since I started doing long exposures , my variable ND filter of choice was Vivitar. It's worked great over the years but I was in need of a new filter.Since I also own a K&F Concept tripod, and they've treated me well, I decided to give this filter a try. What could be cooler than an ND filter and a circular polarizer in one?! And I'm glad that I did!This filter works incredibly well. With my old ND filter, I had to stack a separate circular polarizer on top which would lead to vignetting on my widest shots. With the K&F Concept 2-in-1 filter, that no longer appears to be a concern at 18mm. At 10mm, I've noticed a very slight vignetting which is almost unnoticeable. But, it's definitely a huge improvement over filter stacking.While it may require 2 hands, this filter is very easy to adjust. It also feels well built and sturdy.All in all, this filter was well worth the money invested.
23/11/2019
Unfortunately my filter came with a scratch or dust between the glasses, so I can't clean/remove it.The shop can do nothing since I'm from Brazil...Trying Contact directly with factory on china, no good news yet
19/11/2019
Great bang for the buck! Used it at Cannon beach on 11/5 and the results were outstanding.
07/11/2019