Fits perfectly on Canon RF 24-105 f/4L. No issues with fitment or quality.The weather and quarantine hasn't really been great for shooting. So I haven't been able to get some clouds or streams as I wanted. So far with a few test shots it's as you would expect from a 10 stop ND filter. If I can get out to take some tripod pics I'll update this review.It comes with a really nice case. Nicer than the Amazon basics ones. However my Amazon basics circular polarizer is too fat to fit into this case. Too bad because it would have been nice to just carry this nice case around.

K&F Concept 77MM Neutral Density Lens Filter 10 Stops ND1000 Filter is impressive at this price range. I have used expensive filters that leaves noticeable color cast. But L&F filter leaves minimal color cast that is easily correctable in post-processing.On the downside, built quality is not as good as expensive filters such as B+W. Also I have noticed that it scratches easily. So as long as you are careful, it works well.I can recommend it to anyone looking for good results at reasonable price point.

If you are interested in adding more gears for your camera, whether micro four third or dslr, I highly recommend getting ND filter. If you want a long exposure that reduces the amount of light entering your lens, you go for an ND filter. Usually you get ND filter with 3-stops in strength - 2,4,8. But this is 10, which is quite extreme. This K&F is a 10 stop one which basically reduces the light entering your lens by approximately 10 stops. You can get incredible images using slow shutter speed or wide apertures- for example street photography, moving clouds, moving water(such as river, lake, ocean) or waterfall. Make sure you have your camera mounted on a tripod (due to long exposure) or else you won't he happy with the output.I recommend downloading an image or app to help you calculate the shutter speed.You will need to find a suitable composition and then take a test shot without the filter. Move your dial to manual mode, before you put the filter on (otherwise the filter will make the composition very dark and your lens will try to continue to auto focus). Calculate what shutter speed you will need to adjust and take the shot.For the price you pay for this K&F, the image turned out pretty good. Although, there is a color cast, so you will need to either adjust it in your camera or use photo processing software such as lightroom to adjust the color cast. I can;t wait for this virus to be over so that I can take my camera and this filter out to shoot some water falls!!*Unfortunately I am unable to upload a photo right now, but when it's back on, I will upload a pic.

I'm using this on my Fujifilm X-T100 with a step-up ring (my lens size is 52mm and this filter is 58mm), and I am blown away by the results. I've read about ND filters and I've been wanting to try one since I'm not impressed with polarizing filters, and my exceptions were met and then some. The filter does a wonderful job filtering out light, allowing me to get much clear pictures. I took it out for a test run on a very sunny day and the pictures I took were so sharp and clear.The filter comes in a plastic storage box. The metal ring is threaded properly. I had no issues adding it to my step-up ring. I've taken it off and on a few times just to see how the threads would hold up, and it is still screwing in smoothly. The lens itself is clear with no visible flaws.I have taken many pictures with this filter now, and I can see no noticeable colour shift in any of them. The pictures look sharp and clear.

This filter is very dark which allows you to take longer exposures. This allows one to blur moving objects on purpose. The lens threaded into my 58mm with no issues. Image colours are preserved with no distortions. This is the darkest filter I have every owned. It is so dark that in dim daylight such as a heavily overcast day it is hard to see enough to focus. Even the autofocus had trouble. That being said, this filter has specific uses such as the blurring effects on moving objects and for that it is very good.

On a very bright day, and when you need to control the light for a long exposure this ND filter comes in handy. Just make sure you use a stand, not recommended for hand holding due to hand shake. Over all it is quite good and worked well for me.

I usually shoot with much lower ND values but was curious to see how this ND1000 filter would work. It comes in a rather large universal lens case and the quality of the filter is very good.On my Canon T5i, the 58mm filter screwed right in without any trouble - man is this filter ever DARK! I've been highly impressed with the results: no color cast and I'm able to get very long exposures with excellent results.Overall, a nice filter that will give you very nice results at long exposure times.

helped with long exposures and an even ND filter across the whole field

Excellent filter, easy to travel with and very little color tint making it a nearly perfect neutral filter. And for the price, I would absolutely order this again

Its a decent filter got some good images so far with it, however the few times I used it it already has a couple tiny scratches on the inside glass. Not sure how this happened haven't dropped it or anything, I put it in my front shirt pocket a couple times briefly but if it scratches that easy maybe I wont anymore. I don't think it will really affect the performance of it but it still kind of sucks it got scratched but it is on the cheaper end of filters. Would still recommend if you've never had one before. Also didnt really notice a colour cast which was great.