I always take a “test shot” to get the strobe positioning right when taking macro shots. I was using a shell when it turned out the shell was occupied by this red reef hermit crab (Dardanus arrosor). This was on the P29.
Wed May 8 08:19:09 2019
16°C, depth 23 m
f/11.0, 1/640, ISO 100, 70 mm
Wet lens: Saga Dive Pro +15 Macro Diopter