Hi ekso,I am new to FourThirds and G1. I know a 25mm on 35mm is effectively a 50mm on a mFT. Can you expand on the "two stops more DOF" please.
Imagine a situation where you and a friend having a FF camera are standing side by side taking images of something. You use a 25mm lens and your friend has a 50mm lens so you are now framing the target (approx) the same way.
Let's say you find you need f/4 to get the DOF you think is the right for this image. If your friend now wants the same DOF he/she has to stop down to f/8. In other words, you get quite some DOF already at f/4 and focusing is less critical than it would be with the FF camera.
OTOH, if your friend figure f/2 would make for the right separation you would have to open up to f/1 to achieve the same result.
I hope that helps. (If you want to discuss it further I think you should start a new thread on the topic.) regards, /Jonas