Magnificent chromodoris, living up to its name.
This one of my my first "close-focus-wide-angle" attempts with a new lens. The technique has potential, but you need enough space to get the housing dome almost touching the subject. Here the distance to the focal plane is 14cm, which I'd guestimate is 1-2 cm from the surface of the dome.
Sogod Bay, #Philippines
#scuba #WeLoveSlugs #CFWA