Why does nd filter have chromatic aberration?

Are you a high-density ND (above Grade 8) or an ordinary ND?

The color shift of neodymium mirror is almost inevitable, but ordinary neodymium can achieve a small color cast. Of course, dozens of domestic brands are basically biased, and the same brands are uncertain. This thing is basically a penny, and its technical strength is fully demonstrated.

In the case of high-density ND, the color cast of ND 1000 is much more serious, but several high-end brands are better.

Even B+W will have a color cast, but it is easier to correct and a little yellow. Lee's ND is said to have less color cast, but the price is too expensive. ...

Nisi's ND 1000 is good, a little blue, but compared with red and brown, the later period of blue is very easy to handle, it is easy to adjust back to the original color, and the price is relatively close to the people. 77 caliber is only a little over 400, which is a little cheaper than B+W (I use Nikon's 1635, so I pay attention to 77). We recommend Nisi's ND 1000, but Nisi's ND2000 is not very good. ...

By the way, if you buy special filters such as ND and CPL, you will buy the lens with the largest aperture among all your own lenses. Then go to Taobao to buy a filter adapter ring, one from 5 yuan, which is very convenient, and all lenses can be used.

Just now, I asked another friend. In ordinary domestic ND, the natural brand is the general among the lame, which is much better. The green leaves of ND4 and ND6 will be very red.