This is an unaltered image straight out of the camera. I have only managed to get the dreaded blue band clearly evident on this one image. It is not apparent on "normal" real-world images. This one was done, using the "hand partly in front of the lens" test. White balance was set on tungsten. ISO 400. 1/25 second @ f2.8. 35mm equivalent focal length was 35mm.

A second exposure, taken immediately after this one, using the exact same settings did NOT show the blue band. A third exposure, taken at ISO 100 (f2.8 @1/4 second), also did NOT show the blue band.