Hi Bill, Most likely there's no dedicated flash sensor. Instead it relies on the ambient light sensor that measures during the pre-flash. Very similarly to MZ-S operation in P-TTL mode.
Servus, Alin Bill wrote: BO> Apparently the Optio S uses a flash system similar to the MZ-S. In normal BO> flash mode there are 2 quick flashed and in red eye reduction there are BO> three. Has Pentax been able to get a flash sensor inside something this BO> small?
