Built-In Flash And Strobe Use; Strobe Use; Using Strobes With A Fiber Optic Connection - Sony 6116.12 RX100 III Instruction Manual

Built-in Flash and Strobe Use

Always install the Flash Deflector when using external strobes, Page 14.
Always remove the Deflector and install the Flash Diffuser when using
only the built-in flash, Page 14, 15.

Strobe Use

The optional AF35 strobe triggers and provides automatic TTL exposure
by watching the camera's built-in flash, without the need of fiber optic
cords or sensors. Alternatively, two ports are provided on the front of the
housing for the connection of up to two Ikelite, SEA&SEA, or Olympus
type fiber optic cords.
An included flash diffuser improves lighting quality when the camera's
built-in flash is used. The built-in flash is effective between 1-3 feet
(0.3-0.9m) from the subject in clear conditions. For best results, a color
correcting filter or external lighting is recommended. External lighting is
more powerful and can be placed in a position to virtually eliminate the
backscatter or "snow" from your underwater images.

Using Strobes with a Fiber Optic Connection

Two ports on the front of the housing above the lens port are provided
for the connection of up to two Ikelite, SEA&SEA, or Olympus-type fiber
optic cords.
Always install the Flash Deflector when using external strobes, Page 14.
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