Filtro ND2-ND400 Variável (1 a 8 2⁄3 stops), diâmetro 77mm

They don't say it anywhere so its misleading! The thread on the end of it, where you should put your cap on or your hood is bigger than the actually focal length you are using which means you can't put the hood of the same lens you are using while this filter is on!
Filtro ND2-ND400 Variável (1 a 8 2⁄3 stops), diâmetro 77mm

On an 18mm aps-c lens, the "X" that appears on the stronger settings is bad. I got it for waterfall photography which is often done wide angle. I thought I'd try it, thinking the issue was limited to super-wides or just at higher strength. 18mm DX is 28mm equivalent full frame, and not really very wide as far as wide angle goes. The light/dark distortions begin to appear about half-way to maximum darkness on my 18mm lens. On the plus side, construction and quality are fine.
Filtro ND2-ND400 Variável (1 a 8 2⁄3 stops), diâmetro 77mm

the cross on the ends is pretty strong, more so than with other nd filters I own
Filtro ND2-ND400 Variável (1 a 8 2⁄3 stops), diâmetro 77mm

The filter is great. However, this product is shipped without any protective case. I would recommend getting a different product that has a case for your filter, unless you already have something to protect it. Other then that, the filter is of excellent quality and a great build.
Filtro ND2-ND400 Variável (1 a 8 2⁄3 stops), diâmetro 77mm

Bought it for hubby, he said it's just OK
Filtro ND2-ND400 Variável (1 a 8 2⁄3 stops), diâmetro 77mm

No point in spending hundreds of dollars in ND filters when this does exactly what it needs to do. No strange tints, EXTREMELY subtle vignetting.
Filtro ND2-ND400 Variável (1 a 8 2⁄3 stops), diâmetro 77mm

I used this today for the very first time. There was no colour cast. The pictures were sharp, and processed very well in Lightroom. Canon RP and 24-105L.
Filtro ND2-ND400 Variável (1 a 8 2⁄3 stops), diâmetro 77mm

Photographs come out with strong vignette in the top right and bottom left. Increasing the number of stops doesn’t change the marks left on the pictures. Not bad for money but not professional quality.
Filtro ND2-ND400 Variável (1 a 8 2⁄3 stops), diâmetro 77mm

First time it has happened to me on da‘zon. Writing this to tell everyone to order ahead with enough time before your trip just in case you need to exchange. I made the mistake and had to go without on a once in a lifetime trip without the benefit of a filter! Totally bummed! It did arrive on time and looked like it would be great if it had fit.