Optically speaking, this is a great filter, at a decent price. My only complaint if for some reason, K&F's polarizers have a stiffness to them and can be difficult to turn. I have copies of this filter in 2 different sizes, and they are both like this. It's a minor annoyance, but enough to knock off a star.

Sono veramente soddisfatto. Di questo filtro polarizzatore marcato K&F una marca di ottima qualità e professionalità.Possiedo già altri filtri di questa marca e non potevo che confermare la loro qualità ricevendo questo ennesimo filtro.Fondamentale per gestire e ridurre i riflessi dati dalle superfici quali acqua o vetri che potranno quindi rovinare i vostri scatti.Con questo filtro non c è rischio di avere vignettatura o pure le famose X.Ottima qualità della lente e il kit arriva munito di pezza, contenitore per filtro, copri obiettivo e laccetto.Ottimo marchio, una garanzia e ottimo prezzo!!

In general - I'm not a big filter guy. I don't even like using the clear UV filters unless I'm outdoors on a windy day. The reason? I want to get as pure an image captured as possible - and every piece of glass you add affects the final capture.Having said that, there are two filters which can't be reproduced in the post-processing: neutral density filters and circular polarizing filters. Neutral density filters allow you to use a shutter speed that you would otherwise be unable to use - and circular polarizers allow you minimize glare.In both cases, the filters will cause some color shifting - and cheaply manufactured filters are notoriously the worst. I found this K&F circular polarizer to exhibit minor shifting which is difficult to perceive for online work - and can be adjusted easily using a color checker like x-rite in post if precise color is desired.Filters that have minimal color shift tend to be very expensive - and therefore K&F's offering helps to stretch your photo dollar with only a minor level of inconvenience. The construction is good and the filter is thin thereby helping to minimize vignetting - though you can help minimize vignetting by simply ordering a larger size filter along with a set of step up/down adapters.Overall I give this five stars for a superior product at this price point. Recommended!

En uso, este filtro es muy eficaz reduciendo reflejos no deseados en superficies como agua o cristal, especialmente útil en fotografía de paisajes. También ayuda a intensificar los colores y mejorar el contraste, dando más vida a las fotos. El anillo de rotación se mueve con total suavidad, permitiendo ajustar fácilmente el efecto polarizador según las necesidades de cada fotografo.La calidad de acabados es realmente buena, desde el mecanizado del marco, a la rosca super suave a las 24 capas que mantienen el filtro en perfectas condiciones.Aunque su precio puede parecer algo caro la calidad justifica la inversión. Es una herramienta que mejora notablemente la calidad de las fotos en diversas situaciones, desde paisajes hasta retratos al aire libre y que vamos a usar durante muchos años, aunque cambiemos de ópticas o cámaras.

J'ai testé ce filtre polarisant 82 mm en sortie photo sur divers objectifs, en natif ou via des step up rings.Il se visse et se dévisse sans soucis dès lors que ce n'est pas fait de biais, je l'ai mis et retiré une bonne quinzaine de fois sans le moindre problème donc le filtrage est bon.Comme tout filtre CPL de ce type il y a une partie rotative pour ajuster l'intensité, son épaisseur est classique, le grip très bon, le traitement optique aussi. Le bouchon d'objectif en 82 mm est un gros plus, surtout quand comme moi on utilise un filtre sur plusieurs objectifs de différents diamètres, il se maintient bien. La minie dragonne qui l'accompagne ne sera probablement pas utile, je ne connais personne qui fasse pendouiller son bouchon au bout de l'objectif en tout cas.Et en bonus, il vient avec un chiffon microfibre, j'en ai des dizaines, mais ils sont de qualité donc c'est toujours bienvenu. Pour 48 € au moment de ce test, on est sur une gamme de filtre CPL intermédiaire entre l'entrée de gamme et les pros, mais ce modèle fait parfaitement le travail en tout cas.

I’ve been a fan of K&F Filters, and many of their other photographic products, for some time now, and have come to appreciate the consistency and the quality of the brand. The majority of my lenses live their lives with a K&F Concept UV protective filter on their front element.I have done enough testing of the transmittance and sharpness of K&F filters in the past that I now consider them a trusted brand; I feel confident in their quality. And that’s the point, right? Find a supplier you can trust to deliver exceptional quality.I use polarizing filters extensively, much more often than not. They are a multi-purpose filter, allowing the user to add contrast, saturation, reduce glare and reflections and to some extent, because they add neutral density, control exposure. There’s hardly any reason not to use them, other than in low light situations.Another advantage in the 82mm size, and for that matter, most sizes, is it’s cost benefit; using step-up rings, it can accommodate a number of lenses that take a smaller filter size. This holds true for any size filter. In practical terms, the K&F Concept 82mm Polarizing filter can be used on lenses with filter sizes from 77mm on down with appropriate step-up rings; no need to buy a separate polarizer for each of your lenses.The filter is solidly made of aircraft aluminum and is typical of the high-quality of K&F Concept filters generally. Dampening of the outer ring is smooth and has the resistance necessary to keep a setting securely in place. Because there is no stop on a CPL, it’s necessary, when adjusting it, to turn it in the same direction you would when attaching it, so as not to inadvertently loosen the filter proper from the lens.K&F Concept uses AGC glass, formerly the Asahi Glass company, a Japanese company that is the largest glass manufacturing company in the world. They further assert that there are 24 multi-layer, anti-reflective coatings on each side of the glass, important for reducing internal lens reflections.In my testes the filter performed true to the seller’s claims. It does polarize the light and the colors seemed “true,” or at least to the extent inherent in the reproductive capabilities of a digital sensor, so effected by camera settings and manufacturer introduced sharpening and dynamic range capabilities. In other words, “True Colors” is subjective. In addition, I didn’t notice any reduction in sharpness when using the filter.The physical attributes of the filter are its relative lightweight, along with facetted chines on the circumference of the polarization ring, for grip. I use an 82mm VND with the CPL filter, and the threaded front of the filter, also 82mm, provides plenty of depth for the secure attachment of the stacked filter. The K&F front lens cap provided with the filter is a match in quality to any pinch type OEM lens caps I own. The pinching levers are easy to use, firmly spring-loaded, and provide a firm grip to the filter or the lens to which its attached. I also appreciate that the front threads of the CPL match those of the filter size, 82mm, allowing for the use of standard OEM accessories, for example, a lens shade.The filter is supplied with the lens cap, an adjustable lanyard, a high-quality microfiber lens cleaning cloth and a plastic storage case. K&F Concept provides plenty of value for your money and they don’t cut corners.

Mit diesem Filter habe ich mir beinahe mein nagelneues 90mm Makro-Objektiv von Sony versaut. Das Gewinde ist offenbar so schlecht gefräst, dass es sich sofort im Objektivgewinde festfrisst und sich mit der Hand nicht mehr lösen lässt.Ja ja, werden einige sagen, der Hersteller inbegriffen: da hast du wohl schräg aufgesetzt oder zu fest angezogen. Nee, das kann ich schon nach dreißig Jahren Fotografie und diversen Tests von Filtern und Kamerasystemen schon ganz gut. Das ließ sich ganz leicht aufschrauben und dann wird es mit zwei Fingern leicht angezogen. Das hat in diesem Fall schon für das "Desaster" gereicht.Bis ich gemerkt habe, dass ich das nicht wieder abbekomme, war ich aber gut zufrieden mit dem Filter. Ist halt ein Polfilter, der macht, was er soll. Er ist so dünn ausgeführt, dass die Sonnenblende sich völlig normal aufsetzen lässt. Die Optik des Filters stört die Anmutung des Objektivs überhaupt nicht.Die Wirkung unterscheidet sich jetzt nicht deutlich von den Polfiltern bekannter Marken. Damit wäre ich absolut zufrieden. Aber ich möchte das Teil einfach mit der Hand wieder abbekommen können.Im Internet habe ich dann die Methode Klebeband und Kabelbinder gefunden und angewandt. Das hat dann doch ganz gut funktioniert. Das Problem bei den dünnen Filtern ist vermutlich, dass man einfach zu wenig Fläche hat, mit der man zugreifen kann. Und dann dreht sich ja der äußere Ring auch noch mit und bietet keinen Widerstand.Letztendlich habe ich den Filter wieder runter. Das ist die Hauptsache. Vermutlich ist das ein EInzelfall, kann ja mal passieren, aber bitte nicht an meinen nagelneuen 1000 Euro Objektiv. Ich würde den Filter also zurücksenden, damit das nicht nochmal passieren kann. Wer das Teil besitzt, besser nur locker anschrauben.

gute Qualitätgutes Preis / Leistungsverhältnis

K&F concept has different type of filters lines. This is more of a budget filter compared to their more expensive nano x pro line. Not sure why this item is marketed as 8K, but there is no improvement in image quality except for what CPL does. I did notice a bit of a color shift while using this filter, but if you use a color correction chart to color correct then you should be ok. If you are in a budget and looking for a decent CPL filter, give this a try. Slim filter and easy to put on your lenses without any issues.

So this polarizer is pretty good. It's good glass. The polarizer thingy works tons with a cleaner a case and a cap that comes in very handy. Easy to put on And off. worth it. Always good to have!

K&F has just been killing it with their lens filters recently. This lens filter has a permanent spot on my F/1.4 lens and does such a good job filtering out plane polarized light. Whenever I'm shooting something that can experience a lot of glare or has windows or water in it having this circular polarizing filter really just improves the fidelity of the resulting image to a large degree. You don't have to deal with annoying sun glare that tends to wash out your photos and you can really get a really nice clear photo of whatever you're shooting especially if what you're shooting is outside in the middle of the day. I highly recommend this filter to pretty much every single photographer as they can improve their photography with it. I don't go anywhere without this filter.

works great, i order most all my filters in 82 except for some that live on certain lenses. does its job really well, i've enjoyed what i've made with it.hey K&F! I LOVE your stuff!