New Post: Determine color mode

I can't seem to retrieve the actual color mode of an image. Each of the following two images has a different color mode:

1. https://www.dropbox.com/s/p4dpnkofgezfzwk/23792_004_0676_R_V1.tif
   ExifTool shows me:

                                Color Mode                      : RGB
                                ICC Profile Name             : Adobe RGB (1998)

2. https://www.dropbox.com/s/4ngfjwkayrzp2ev/Spirits_Dead_1968_f_R_T.tif
   ExifTool shows me:
   

                                Color Mode                      : Grayscale
                                ICC Profile Name            : Gray Gamma 2.2
   
   

However when I use the following code on both, the resulting object (magickImageSource ) shows that the ColorSpace is Gray and ColorType is Greyscale. Shouldn't image #1 show me RGB?

    MagickImage magickImageSource = new MagickImage(sourceFilePath);