One of the best purchases of recent times. Works great with my Sony 24mm f/1.4 gimbal. I have no problem with assembly and disassembly. Works well and does not change color.

Great to have a variable filter and an ND filter in one. No color cast visible. Recommend.

I was given this filter by K&F concept to review, but this is my honest review based on using it for a few shoots of both photography and videography. The filter comes in a really nice plastic protective case, also included is a cleaning cloth in a pouch. The cardboard box itself is sturdy with a magnetic opening.I asked for the 77mm filter to fit my biggest lens and got some step up rings so I can use this on all my lenses and by stepping up you wont get vignetting. The filter itself feels very good quality and well built, the exposure adjustment ring allows you to choose between five stops, it feels like a fluid video head and will not move on its own.I didn't witness any colour shift, or any photo or video issues using this filter, also there was no sign of the black X some filters show when the two optics cross at their maximum point.I would definitely recommend this variable ND filter, its at a very good price point and by using step up ring for around you can have this one filter work on all your lenses, that is a lot cheaper than a few sets of ND filters when your lenses have different sized filter threads.Using this on video at either 25 or 30 fps using shutter speeds of 50/1 or 60/1 this filter easily cut down the light to stop my footage being over exposed.I have added a review on YouTube and video demo, you can find this by searching youtube for this product description.

Efficient circular polarization filter and very practical ND filter for long exposures in broad daylight, you can gradually switch from ND2 to ND32 (there are benchmarks to be found out). A very good manufacturing quality. Avoids having multiple filters to take with you. On the other hand, there is some vignetting that needs to be removed with LR, PS or others without any m

I have always been a fan of K&F after buying their tripod, so I was pretty sure about the quality of ND.This is 1of 3 NDs I have purchased for my crew, and I should say this is amazing.I would start with the build quality, and it's pretty sturdy, the casing is aluminum and lightweight.Coming to the colors, I didn't see any difference in colors with ND on at Min and ND off. Also, the cutting down of light from ND 2 to ND 32 is so accurate for an ND(measured with exposure meter).

This is one of the best purchases I've made lately, and I have no hesitation in recommending it, especially for travel photographers who are committed to bringing as little camera gear with them as possible. Though sometimes it's better to wear less, but there are things I just can't live without. Filters are one of the accessories that I often carry with me because they are indispensable for my landscape photography. My first impression of the filters is that they arrive nicely and safely packaged. They are packed in a cardboard box and the filter itself is in a hard plastic box inside the box. Except for the circular polarization filter, the frames of all filters are made of an aluminum alloy (the polarization filter is made of an ultra-stable magnesium alloy).

Excellent cpl + nd variable, compact and easy to use. I would have preferred a through thread at the exit or the option of attaching a lens hood.

Verified Purchase Better than expected

I took these test photos at the beach in the late afternoon on a very sunny day. I can see the filter/polarizer has removed any glare from the water, my dog's eyes are so clear with color! Very happy with my purchase

I like that it's a variable ND and polarizing filter combined. It makes setting up my shot so much easier, without trying to put in two different filters. On top of that, this filter feels and sounds really solid. Another important thing is that this filter doesn't have the annoying "X" that some others have. I would recommend it and think it would be great for anyone who wants a decent ND and polarizing filter without spending hundreds of dollars.