"Gregg" <jurisdoc@teleport.com> wrote in message

news:W2Vub.7399$n56.6460@newsread1.news.pas.earthlink.net...

> F100 will always default to 1/60 flash synch speed on P, usually on A, you

> cannot be 100% of the pre-set flash synch speed on anything but M

I do not think that this is true...

The P shutter speed range is limited to 1/60-1/250, depending

on ambient-light exposure needs; in A mode, the shutter speed

can vary anywhere up to 1/250th; in M mode and S mode, you

can set anything up to 1/250th when the flash is on...

> The camera assumes you are using the flash in low light or dark conditions

> and wants to provide the maximum amount of ambient light to supplement the

> strobe.

No - it adjusts the shutter speed (if possible in the mode selected,

and with the limitations pointed out above, when the flash is switched

on) to match the requirements for correct ambient-light exposure.

Try the various modes with fast film used outdoors in daylight, with

the flash switched on...;-)

--

David Ruether

d_ruether@hotmail.com

http://www.David-Ruether-Photography.com