I doubt they are. I have a sunpak flash for TTL that has a Pentax-Oly switch on it. The contacts in the shoe/flash may be layed out the same, but their meanings are different.
-Lon
[EMAIL PROTECTED] wrote:
I heard at a time that Olympus (old system, not digital one) was compatible with Pentax one. Any truth to this? and if so, to what extend ?
Thibouille

