My students this summer are going to have a Canon S100/Canon housing combo and a Sea & Sea YS-01. Does anyone here know whether the camera has a pre-flash or not? I am just wanting to know whether they will be able to use the DS-TTL feature on the strobe.
Thanks for any info,
Cheers,
Marli
The S100, like other canon cameras, has pre-flash only in auto,p,Tv and Av modes. It does not have pre-flash in m mode.