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I have used this combo, E-520, Olympus PT-E05 housing and Z-240 strobes in S-TTL with fiber optic cords and no need for the TTL-converter.
Phil Rudin
I doubt it's compatible, at least with TTL. You would need a hotshoe to bulkhead cord anyway and the one from your 350 isn't the right thing. A F/O cord isn't that expensive.
Jack
I doubt it's compatible, at least with TTL. You would need a hotshoe to bulkhead cord anyway and the one from your 350 isn't the right thing. A F/O cord isn't that expensive.
Jack
I use the E-520 set in manual mode and ISO 100 most of the time. In macro I use the fastest shutter speed most of the time and F/11 to F/22 with the 50 and 35 mm macro lenses. With the 14 to 42 lens I have used a range of shutter speeds depending on if I am at the wide end of the lens or the narrow end of the lens.
The strobe is set to S-TTL and the right dial is set to at 2.8 for macro close-up and in manual for most wide angle from about 45 cm or more. Set the right dial to 5.6 at 1/125 sec. and then adjust for subject distance.
Phil Rudin
I still think you adding complications to a very simple system.
Jack