Light ouput of Nikon SB-24 and Ikelite SS200 underwater strobe
The dotted lines are 1/2 to 1/8 power output for each strobe. The photo sensor is a TLS252/TI light to voltage converter that I obtained from Scandinavian electronic supplier ELFA. The data acquisition was performed with my own program LabGraph interfaced to a Labmaster TM-40-PGL data acquisition board.