Very good investment.
High quality

Fits all the lenses on my Canon EOS 5D Mark II and my daugther's Nikon D5600, all the lens adapters make it a very good option instead of buying individual filters. Good price for the quality.

Until now only water pics but it's just what I was looking for! Recommended.

The picture quality on these filters is by far ahead of variable ND filters. I am a videographer and rely heavily on ND’s to get the shots I want.

They are super Sturdy and the I love the case the filter came in. Not to mention having this on your rig looks really cool!

For such a low price, my expectations weren’t very high but boy this product delivers. For the price of a single screw on ND1000 filter you get a holder plus a 100x100mm ND1000 filter.

Attaching the filter holder is simple: simply screw on the appropriate adapter from the supplied adapters, then snap the filter holder on by pulling back on a lever. Then slot the filter glass in one of the two slots and you’re ready to rock and roll.

The holder holds the filter glass securely so there’s no worry of it slipping out, regardless of orientation. The only potential finicky part is attaching the holder to the step up ring — you’ve got to ensure that it’s actually secured, because it may seem secure but actually isn’t. After a little practice, you get the feel, easily.

As for picture quality, it’s very good. Little to no color shift that I can see. Great clarity with no distortion that I can tell. It appears to not vignette at 16mm on my Nikon 16-35 f4, though I’ll have to doublecheck. Absolutely great value for the money.

And as I mentioned earlier, there are two filter slots in the holder, so you could potentially stack NDs, or stack an ND and a graduated ND, or whatever. One thing that would have been nice would have been a way to also use a rotatable circular polarizer, but for the low price, I’m not complaining. Might end up picking up a square circular polarizer for when I’m shooting over water.

All in all, in you’re trying to get into long exposure photography and want to try 100mm filters without breaking the bank, yet still get great image quality, this is the one to get!

Been looking for a filter that I could do long exposure with water scenery to capture the silky look. Because of the lock down I haven't been able to fully test it but from some fountain picture I took in my backyard the quality is amazing. When ever the beaches reopen where i'm at ill update the photos I have.

What I really like about the kit is that they provide you with so many lens adapter. I have Nikon lens and trying to transition myself into the Sony size so having that option is fantastic. For example I have a Nikon 50mm lens that takes a 58mm ring. My Sony 50mm takes a 49mm ring. This kit provides that to you and so you don't have to buy multiple filter for different lens. Whats great about the kit is that you can easily remove and install the filter with the quick disconnect so after you focus at what ever you want just reinstall the filter with a snap.

The rings seems to be made of high quality aluminum and the finish is flawless, sames goes with the adapter plate. the Glass itself is simply amazing. For the price you cant beat it just starting out in photography. K&F photography line has improved so much over the years.

My only complaint is that the filter doesn't sit flush against the filter housing there is a slight gap very small, though it hasn't had any issue with it and not sure it will unless the sun hits it in the right spot I guess. Overall i'm very happy with the purchase

Pros:
• Variety of lens adapter
• High quality glass
• Quick disconnect for removing and installing the filter on the camera
• Well packaged

Cons:
• The filter doesn't sit flush against the adapter letting light in

If you found this review helpful please hit the helpful button, it lets me know my review might have helped you out.

A few years ago, I started beefing up my camera equipment. I had a Canon 5D Mark IV camera body, but didn’t have great glass. So, I started my gear journey by upgrading my lenses. I now have four amazing lenses including a 70-200, 24-70, 100mm Macro, and a Wide Angle lens. After I finalized my collection of lenses, I started looking at accessories I needed to accompany those lenses and came up with a short list of items that included high-quality filters. The problem I had was that I needed to be able have filters that works with all my lenses. Buying filters for each one of your lenses can get really cost prohibitive. So, one solution I found was to get a square filter with step-down rings. K&F Concept has a great option for this type of set-up so I gave it a try.

About a month ago, I shot photos at a wedding on a mountaintop in Tennessee. It was in the middle of the afternoon and the sun was super bright at the location of the ceremony. The venue was huge and I wanted to pack my camera bag somewhat light so that I didn’t have to struggle with tons of equipment. The square filter set from K&F concept was perfect for this type of work. The kit is lightweight and it makes it possible to use the one filter for several different sizes of lenses. During this wedding I was working with an 82mm lens and a 77mm lens as my primary glass. At the ceremony site, I had to quickly swap lenses and reapply the filter in order to get the shots the couple wanted. I found gaps in the ceremony where I could quietly and quickly change lenses and attach the filters without disturbing the event. It worked perfectly and even though some people might consider it cumbersome, I thought it was a lot easier than having to swap lenses and then screw filter into each lens.

When using these filters, I shot exclusively in RAW, but did not perceive any color cast from the filters. The mount is solid and the filter is well-protected by the soft lining in the case. It’s very easy to attach the mount to the lenses and in my opinion is actually easier to work with than individual filters.

I do feel like the lens adapter could fit a little more snuggly onto the camera lens, but I’m definitely not complaining about that and it is certainly not a dealbreaker. It’s just a tweak that could make the product even better than it already is.

One of the most appealing features of this product is its price. At $73, it’s much more budget-friendly than purchasing a single ND1000 filter. This is a great set-up for beginners and professionals alike.

Came in quality packaging. Adapter rings were in individual bags but don’t see that as a drawback.

Hoping the glass is a better choice than resins that scratch...will just need to be careful not to drop them.

Needed a 10 stop Nd filter for long exposure and decided after reading reviews to buy this bundle instead of buying a smaller cokin p size to go with and older format Hi-Tech system I have. So glad I did.

I LOVE how easy this is to attach to the lens. I need to take more shots...but so far I am not getting any color cast. I shoot raw anyway so it isn’t a deal breaker. I LOVE the glass. Because the set screw was a bit fussy on my Hi-Tech holder, I opted most times not to carry it with me. I would rather fuss with composition and camera settings than fuss with a filter holder. This one will be in my bag from now on for sure. It’s simple to set up in the field.

Update 10/12/19. Put this set thru it’s paces on a photo shoot in Hawaii. Professional photographer was impressed with the 10 stop glass. No color cast. Easy to use. Got the 6 stop and 10 stop glass. Highly recommend both. I just need to get a 3stop to complete my set.

This is tough to beat. Not only do you get a 100mm GLASS (not plastic) 10-stop ND filter, but you also get the filter METAL mount and multiple METAL lens adapters. Even if you need to buy step-up/down adapters because the ones included do not fit your lenses, this is still a bargain. Even though this comes in at well below the price of other 100mm 10-stop filters (without the mounting system), it performs excellently.

My unit doesn't produce any noticeable color cast, but I also shoot solely in RAW, so a color cast wouldn't be an issue anyway. The case for the filter is firm, so I don't worry about it very much when it's in my camera back, and the soft lining keeps the filter safe from scratches (so long as nothing coarse gets inside, of course). Better still, the filter mount features a second slot should you wish to use additional 100mm filters (e.g. graduated filters). I point out the size because this is the "standard" in these filters, rather than the more common 80-something mm ones you see in comparably-priced square ND filter bundles that use smaller, cheaper plastic filters instead.

The only issue I found, and this is really just nitpicking at this point, is that the filter mount never really feels very securely attached to the lens. The filter and mount won't fall off if the camera is moved or tilted forward, but the mechanism that attaches the mount to the lens adapter could be a bit tighter fitting in my opinion. Nevertheless, great product at a great price. Anything "better" will be considerably more expensive, and even then, how much "better" will it be?

I recently purchased this set of filters for my Nikon camera but they also fit other brand cameras I own. That is a huge plus for me. For the money, this filter set perfectly meets my needs. This set is good quality, comes well packaged and arrived in perfect condition. I would recommend this set to others.

I was skeptical about getting this but I though I would give it a go, and I am happy I did. I am surprised and how well this has worked for me, I have not had any issues with it so far. Yes, there are better and more expensive devices available, but I very seldom need to use ND filters so this is perfect for me.