Grey scale Geotiff

Is there any interest in a grey scale Geotiff? i would like for there to be an option to have my geotiff in grey scale. Does anyone know of a way to turn their Geotiff into a Greyscale?

Hi Chelsea, You can generate reflectance maps without any correction from RGB images, that will give you a grayscale map.

Thank you very much for this information, i will give it a try