CameraPlus-Professional 49mm Slim S-PRO1 MC Neutral Density ND 3.0 Filter 1000x - 10 Stops + free aluminium filter screw-in caps The fact is that any filter this dark is going to give you a color cast. The B+W's give a orangish red color cast. and the CameraPlus ones give you a blueish color cast. The color cast on the CameraPlus's are more apparent compared to the B+W's. The IQ degradation is almost identical. Both images are extremely sharp. both B+W and Haida post production white balance result in almost the EXACT same image. Its super easy to fix in light room or Photoshop no matter what filter you choose. In all, CameraPlus is professional, cheap, quality and thickness option.