So I recently switched from my t3i to a G5 with 20mm and 45mm lenses. I need to pick up a flash. I should mention flash photography is something I don't fully appreciate or grasp. I did however like the richness of color, low light magnificence, and bouncing capabilities to throw light around from the 430 ex ii on my last camera. I keep reading that the G5 doesn't support Af assist on external flashes. Is this correct? Does the camera's built in AF assist perform the function instead? I can't imagine how much the usefulness of an external flash would be diminished without some sort of AF assist. I appreciate any input as I am looking into an appropriate flash (small enough for body, swivel/tilt, etc.).