I'll start right away with the marketing lie. The anamorphic squeeze factor is 1.1 and not 1.2.
That is simply a lie.
The competitor from Freewell, whose product is many times more expensive, once explained that the Pocket 3's lens construction does not allow a larger squeeze factor without causing unsightly sacrifices in image quality. Therefore, they left the factor at 1.1.
In the editing software, I just noticed that the K&F filter only squeezes 1.1 and not 1.2.
However, the image quality of the K&F is impeccable. Compared directly to Freewell, they liked the blue stripes as well as the lens flares even better than the much more expensive competitor. But that may of course be a question of taste.
The autofocus is therefore still working properly. Facetracking continues to work perfectly.
K & F ND filters can also be used by placing them behind the anamorphic lens. As a result, there is no shading in the corners. The magnet in the filter is then strong enough to stay in position on the ND. But it should of course be straightened.
The competitor's lens is not curved so that you can place the ND filters in front of the lens. I am very happy with the outcome of the videos and can absolutely recommend this anamorphic lens.
I subtract one star for the marketing lie alone.