Ich bin sehr zufrieden mit dem CPL-Filter er wurde mir auch pünktlich gesendet !
Mit freundlichen Grüßen
W.Ehrhardt

Like all CPLs, it screws in and then spins to adjust the input. The edge contains nice grooves that make it easy to grip and spin. It has great build quality. Feels very satisfying to spin and stays in place. And, as you can see, it works great at blocking incoming light from screens or reflections off windows. As a documentary filmmaker, I often have to make sure my reflection isn't seen in windows. Filters like this help. As a video producer for a furniture company, CPLs also help remove reflections on the sheen of wood furniture finishes.

Produit gratuit testé dans le cadre du programme du club des testeurs Vine, sans rémunération pour donner une note et un avis qui sont basés sur mon utilisation au quotidien et qui n'engagent que moi.

Les produits K&F ont bonne réputation et je n'ai pas hésité à commander ce filtre polarisant circulaire pour utiliser sur mon Tamron 150-500 en 82 mm.

Le filtre, visiblement de qualité, est livré bien calé par une mousse compacte dans un étui plastique, bouchon fixé dessus.

J'apprécie :
- la bague fine mais solide,
- le filtre se visse/dévisse tout en douceur sur l'objectif,
- le bon grip pour régler facilement le niveau de polarisant,
- le bouchon d'objectif et la courroie compatible avec le pare soleil "au repos" le long du fût. Plus fin que le Tamron d'origine, il a d'ailleurs pris sa place !
- l'étanchéité à l'eau qui glisse rapidement,
- le chiffon.

Je regrette :
Rien pour le moment.

A ce stade, je n'ai pas remarqué de variation de couleur ou luminosité, du moins rien qui ne puisse être réglé facilement au post traitement.

Répond parfaitement à mon attente pour un filtre polarisant de qualité.

I am using the K&F Concept 82mm Circular Polarizer Lens (CPL) to take photos with my 24-70 zoom lens. The polarizer does a fine job getting rid of stray light -- reducing glare and unwanted reflections. It is easy to install and adjust once in place on the lens. As with any polarizer, there is a slight reduction in brightness when using this filter.

I noticed that rotating the polarizer lens to increase or reduce the polarization led to the threaded mount portion of the CPL getting tightly attached to my lens. The CPL was difficult to remove at that point due to the threaded mount being thin and hard to grasp securely.

Ich bin über das hervorragende Angebot an Objektivfiltern zum überzeugten K&F Concept Fanboy geworden. Vor einigen Wochen hab ich mir auch einen Kamerarucksack und eine Softbox aus ihrem reichhaltigen Angebot zugelegt…soweit war alles Top.
Dieser Polarisationsfilter reiht sich nahtlos in diese Erfahrungskette ein. Die Verarbeitung ist erstklassig, das ‚coating‘ ist wertig, und der Filter lässt sich butterweich drehen…ich bin wieder mal begeistert.
Auf sehr hohem Niveau kritisiert – ein leichter Blaustich nimmt den Aufnahmen gefühlt etwas Wärme, aber das kriegt man in Post mit einem Click wieder geregelt.

Wie immer…5 Sterne für das K&F Concept Produkt.

I like K&F products...most of which are hits. A few misses but that happens.

This one is a hit.
The Series X Nano CPL is made from Aluminum metal, which is to be expected at this price point. Brass will always cost you more, but this is just fine. The filter is pretty thin, yet the metal frame seems robust and well gnarled on the outer rim with smaller gnarling on the top, in case you have to go into ballistic mode on a stuck filter.

I did not see any color casting, and my camera's light meter showed a drop of one aperture of light when full CPL was utilized...not bad at all. Images provided will show the CPL effectively cutting glare on a water surface.

This is the first time I have received a lens cap when ordering a filter, and I like it. It's nice to have a spare, and the cap is just as good as my original lens cap.

This is a nice CPL to have for the coin asked...recommended.

Another win from the folks at K&F! This circular polarizer is excellent and happily has found a spot in my camera bag!

Sure, I have other polarizers from other manufacturers at 1.5 - 3x the price and, at the end of the day, they all do the same thing. It comes down to materials, fitment, and the quality of the elements/film/coatings. For the K&F this ticks all of the boxes and is price competitive for sure.

The polarizer screwed right on to my workhorse Canon EF 27-70 2.8 L lens as well as my EF 16-36 2.8L with zero hang-up, drag, or grind with cheap filters often do. Once mounted, you can rotate the bezel of the filter to get the polarizing aligned for your use.

I have not done an extensive study on this to see if there is any colorcast or defraction however I have not noticed any anomalies while using the filter. And no, it's not a permanent fixture on my lens as more likely than not I am not needing polarizing.

The filter comes with one of the K&F lens cleaners as well as a spare lens cover (K&F branded) which is a nice spare.. also comes with a small lanyard. The filter and lens cover come in a reusable plastic padded storage box for safe keeping.

I have included a couple of photos of the contents of the packaging.

Well, I do see reviews where people complain about how expensive filters are, even ones in this price range. 10 years ago, besides the fact that you couldn’t get filters of this quality (really only because of the advances in multi-coating technology), ones that were close were very expensive, at least to me.

The only advantage the filters that are in that high price bracket have is having the mounts machined from brass (and K&F has their upper tier line with even more multi coat layers and brass rings, that I haven’t tried yet). These are nicely machined, and they have a deep side knurling, that especially on a rotating filter, are nice to use.

This specific filter rotates very smoothly; I do have the same nano series filter in two other sizes, and the big one, 82mm, is stiff to turn. My assumption is it will loosen up. This specific filter (67mm) is quite smooth though.

So, what makes this 5 stars to me? The polarizing film in it works as expected, and there is very little color cast. Although I haven’t done a comparative test on light transmission, and reflectivity with their CPL filters, I did a fairly extensive comparison on UV filters, and the nano series was in the top tier—again, competing with filters that cost up to 4 times as much. So, I’m extrapolating that the coatings are just as effective on the polarizers. To be fair, I should mention that the newest of my “expensive” filters are at least 5 or 6 years old, and, as I said earlier, there’s been a lot of advancements in coatings made recently.

The cap, cleaning cloth and filter keeper are just bonuses. I’d rather get the older, round style K&F filter case rather than the larger box that this came in though.

I got this for my bird lens, which has a UV filter, but needed a polarizer. I've been pleased with K&F Concept lens filters in the past, so I got this one. It works great! The threads go onto my lens smoothly, with no catches or false starts. The polarizer is multi-coated glass and it is clear and clean. No flaws that I can see. The materials it is made of are great quality and seem durable. I've had great luck with products from this company and they have proven their durability. It comes in a plastic case. You also get a microfiber cleaning cloth with it.

It enhances my photos of sky scenes. I also look forward to using this to try to get better images of migrating salmon in the river this winter. The polarizer helps a lot with the reflections on the water. That will be my main use of it, other than for bird photography. It really helps make the colors against the sky "pop" and makes my images better. I'm not a professional photographer; just a hobbyist. But, I think this polarizer is well worth the purchase. I am happy with it.

As always, no complaints whatsoever with K&F lens filters. I own probably around a dozen lens filters from them, and they're all great. This one is no exception. Super clear, and came packaged very well.