[JohnK]

Thanks for the feedback folks. Tim - set up was as follows:

Camera - Olympus C4040z
Housing - PT010
Strobe - Ikelite DS-125 triggered via slave from camera flash

Settings:

F No = F2.8
Shutter = 1/60 sec
LCD = on
Zoom = 35mm
Flash mode = forced (always used)
Drive = single frame
metering = spot + flower
Autofocus = on
ISO = auto
A/S/M = A
Flash compensation - none
Flash = INT + EXT
Flash setting = slow 1
Noise reduction = off
Multimetering = off
Digital zoom = on
Fulltime AF = on
AF mode = iESP
Sound = off
Movie = off
Function = off
Still = HQ
WB = auto
Contrast - 0
Sharpness = 0

Hope this info helps !!!