Hi everyone. I have a new toy - an STF-8 Macro Twin Flash. I am ignorant when it comes to the Olympus TTL system. To date, all of my flash photography has been metered manually with a hand held meter with two or three heads, soft boxes etc. I'm wanting to use my 60mm macro, hand-held with my new flash. I want to take advantage of the Olympus TTL system. My first results seem okay, but on taking a photo on A mode, when the histogram is bunched to the left and things look a bit dim, I'd hoped that by dialling in, say, +0.7 or +1, then the histogram would head towards the right and the preview would look better exposed. It doesn't. Dialling in an extra stop. via exposure compensation does absolutely nothing. Aperture is f2.8 so plenty of power is available. Flash is set to auto (TTL). I reset the camera to factory settings. No change. What am I doing wrong?