K&F Concept 100 x 100mm ND64 (6 Stop) Square Filter Ultra Slim HD 28 Multi-Layer Coatings Neutral Density Import AGC Optical Glass

This is a more affordable alternative to the big names and I'm very impressed with the quality so far. It is shipped in a nice box and encased in its leather protective pouch. The pouch looks and smells like leather but I would be surprised if it actually is at this price. Regardless, it is nice quality and should hold up for a long time. I like the strong magnet closure as it is silent to open and close out in the field and strong enough to keep out dirt and dust. The filter itself is real glass and it is multi-coated as I can see color reflections when I turn it to different angles in the light. I have used it for one roll of film so far and it has worked well. Making exposure adjustments for 10 stops results in proper exposure so it is rated properly at 10 stops. I cannot comment on any color casts to color images as I only shoot B&W film.

This is a solid ND filter. I've recently started using square filters instead of circular filters. Below is some of the longer exposures, I shot with this filter. I'm still learning photography, so this filter has been really good to practice with and it helps me progress and learn with my longer exposed shots and photos. Would highly recommend for anyone looking to improve their photography.

I've just got back into the camera and after much research, reviewing and of course managing a budget (this is only a hobby after all) I have tried a number of K&F products and the first thing you notice is the attention to detail and quality in the packaging and presentation. Top quality there. And this continues on to the product to. Top quality glass here for the price point. Would certainly recommend these filters and will 100% continue to use the brand.

K&F filters are value for money. Deliver the quality a photographer expects.

I used the K&F ND1000 MC 20 filter for a short film production. It's drastically dark, but a solid filter when needed for a day shoot, that otherwise would have been washed out with too bright of a background. Great for keeping a creamy bokeh at a very low f-stop. I'll add pictures later. Comes with a protective leather and padded pouch.

Outstanding entry into nd filters. Extremely effective nd filter with no color casts.

I’ve used this a few times now trying to capture long-exposure star-trails in the evening/night and seems to work flawlessly. I don’t have much experience with higher prices ND filters but can’t imagine what additional qualities or how much finer the glass could be for 2-3x the price.

This filter is optically accurate. The case that houses it is of a fine quality as well. I will buy additional K & F filters in the future!

I haven't used it much yet but initial results were decent.

Muy bueno para larga exposición y con buena calidad.

There was no holder inside. I have talked to the manufacturer and they told they dont sell holder and filter separately. I have asked to the seller also for the holder before ordering the product. And they confirmed that i will get filter and holder as well. But i haven't got any holder. So better buy the product from the manufacturer website only. You will get both filter and holder. I would have rated -5 but there is no option.

took two photos, 1 with the filter, one without. a VERY noticable differrence.

It provides you some desired effect though not excellent. But it's ok with this price.