My trusty 30 year old Sunpak 130 has disappeared, i suspect i lost it on my last trip, misplaced, dropped it, whatever, no where to be found. Now i have thought about getting a Canon 430 EX, but will that flash work on old cameras too? I suspect it will but only in full manual mode, right? (only reason i am thinking about the 430 EX is that i also have Canon digital. ) My old flash also had two auto modes, no fancy TTL, it had its own little metering eye. The 430 EX cannot meter on its own, right? If that is true, can it tell the distance it will reach at some iso-setting and f-number? (i do not like the thought of carry around guide number cheat-tables) Any other suggestions regarding a flash that also can be used with different old cameras?