I use the filter on a Tokina 12-24mm wide angle and on a Canon 18-135mm here with a step up ring. The polarizing filter does what it should but with the ND filter there is a "darkening" from 50% to the middle of the picture. A strong black shadow becomes visible. This notorious "X" shadow in the image is manageable with variable filters in this price category... I have individual ND screw filters for the lenses mentioned above up to ND 1000, so I don't have these problems. The filter comes in a padded case Transport box made of plastic, this is perfect for safe transport.
04/01/2022
As a budget item I'm pleased with the filter as a keep in the bag when you don't want to carry your full filter kit. I did find that it produced a cross effect at maximum in certain light conditions but when used judiciously it's a perfectly functional CPL. Sharpness and and vignetting are very good.Would definitely buy again if lost.
15/11/2021
Defintely worth the purchase. I usenit for outdoor events as well as landscape photography. Quality and durability are magnificent!
28/10/2020