Il est optiquement très bien conçu. Je n'ai constaté aucun décalage chromatique sur mes images. L'association du polariseur et du filtre ND est très pratique. Je pense que 3 à 7 diaphragmes est une plage très utile ; jusqu'à présent, je n'avais pas besoin d'un second filtre ND. Cependant, à cause du levier de réglage du filtre ND, je ne peux pas utiliser le pare-soleil de l'objectif, pourtant essentiel pour éviter les reflets.

I've been using this 2-in-1 filter for a while now, and it's become a staple in my camera bag. Combining a polariser with a variable ND filter is such a clever idea—it means less kit to carry and swap around. Adjusting the ND level is straightforward with the little lever, and the polariser rotates smoothly to dial in just the right amount of reflection control. The build feels solid, and it screws onto my lens without any fuss. I've noticed no colour casts or image degradation, even when shooting at higher resolutions. It's especially handy for video work, helping to maintain proper exposure and motion blur in varying light conditions. A real time-saver and a quality piece of gear

Leggero e pratico, resa colori fedele

Bueno

I have tested this Neutral Density (ND) and Polarising filter on the end of a Sigma lens. The thread engaged easily, which is a problem I have not always experienced with cheaper options. Results, to date, are pretty good but, for the most part, the weather has been terrible for getting the best results.I cannot use this filter with a lens hood, due to the ND lever, but I find that to be an issue with this type of filter. The other, minor issue, is that I find the numbers/markings to be a bit small, but that is down to my eyesight!All-in-all, a great lens!