The K&F CPL filter is budget friendly but seems to be well made and, in my experience, it does not cast a noticeable tint at all. However, some cameras may not set the white balance accurately when dark filters are used (such as a 10-stop ND filter). For this reason I prefer to set the white balance manually prior to threading the filter to the lens. This can prevent a color shift and save you the time of having to tweak it in post production.