This is very much a specialty lens: if you don’t know what it is, just move along, move along.
The Coastal Optic 60mm Macro is first and foremost, a lens used for forensic photography: it is equally adept in Ultraviolet and Infrared Light, as well as in the Visible Light spectrum. It is completely apochromatic from 315nm to 1100nm wavelength. If that wasn’t enough, it is arguably considered one of the most distortion and aberration free lenses made and used as comparison standard against which other standard range lenses are measured.
If you want a great Macro lens, save a lot of money and rent one of the other ones. This is a very expensive optic used for special purposes only.