This came in a very nice, very functional hard case which I did not expect, so that was a nice surprise! The filter itself looks very high quality. And the long exposures I am able to get with this are incredible! I would definitely buy this again! Even though I bought a step up ring that can adapt this to another lens and camera I am considering buying another one so I can shoot 2 long exposures with 2 different compositions using 2 different focal lengths at the same time. This thing is awesome!

The filter is really good, it seems to be a real 10 stop filter (some ND1000 are only 8-9 stops, which makes shutterspeed calculations hard), it is reducing light in both Visible and Infrared light (has been tested on a full spectrum camera used for Infrared Photography), so you will not have a nasty discolouration in the sky as with other ND filters, but you will get a slight blue colour cast, nothing that can not be fixed in post process with the white balance tool, but I highly recommend doing a white balance setting with the filter on to get accurate colours, especially if you are shooting in JPG. I did not see any reduction in detail (see the 100% or 1:1 crop). It easily screwed on my lens and step up rings as well. It has a nice grippy area which I find giving a much better grip than other filters. One thing I'd like to mention is the case it's coming with has a nice locking mechanism and also two carve outs to be able to easily remove the filter from it's case, actually it's one of the best cases I've seen, beating the nice metallic cases from Gobe, which does not close well with larger filters.If colour cast is a critical issue for you then this filter might disappoint you with it's blue cast, in that case I recommend Haida's NanoPRO ND1000, which I unfortantely lost, but that has virtually no colour cast at all, but nearly triple the price.For the price the K&F Concept ND1000 is unbeatable. It has just a very very slight blue colour cast, great IR filtering, true 10 stops and no reduction in picture quality. If you are on a budget and looking for an ND1000, look no further.

I think that this filter will give you similar results as others costing much more. Build quality is excellent, it feels solid and looks good. I saw no uneven darkening in the corners even at 20 mm eq. which is very wide angle. I didn't notice any problems with sharpness either. The 10-stops is accurate and is very useful for long shutter photography.

I totally loved this ND filter. Though it was my first one to buy I was worried about the quality of the picture when I use ND filter but it worked absolutely great and I clicked some amazing pictures on my trip to Niagara using this ND filter. I will totally recommend you to go for it.

I was impressed with the packaging as well. It looks so posh and creative.

I really can't believe the quality for the price. It's rare that something like this comes along. The colors and sharpness are perfect. I'm very happy with this ND filter.

I was pleasantly surprised just how tact sharp the photos are with this ND filter being as affordable as it is. I shot in AWB "auto white balance" and did no color correction in post processing these images and was able to shoot at F22, ISO 50 for 30 seconds in the middle of the day with this 10 stop ND filter.

I have had good results so far with picture quality. I went out this morning and took these shots. It was a bit bright so I will have to try again when it's darker but I like what I got. As far as material quality only time will tell.

I needed an ND filter and this one fit my price range and it had good reviews. I had to buy some step up/down rings to use it on my Sony A55 but it works great.

A great little piece of kit, fantastic for silky smooth water shots. Excellent quality glass and threads and an item that is essential for any serious photographer.

I received this filter several days ago at time of this review. My initial impression was pleasure in seeing how good the quality was in the box the filter arrived in from K&F. It is a very sturdy case that can be carried in your bag without any issue.
The actual filter is extremely sturdy and feels very nice to the touch. The material almost feels like ceramic for the ring and a nice piece of glass for the actual filter. So far, I have no complaints with this filter.