In viewfinder I see the focus screen with brackets (left, center and right focus point).
I think that three in the middle of the screen has something to do with metering, either spot or matrix. Those are for the camera - not us.
I look down in viewfinder. I see two mechanical thing under viewfinder LCD.
The far left on the bottom is the focusing precission indication. If you use manual focusing that little thing helps you to see if the object is in focus or out of focus.
Right next to it is the shutter speed indication, than next to it is the aperture.
Right next to it is the sliding exposure bars which you decide to make it over exposed photos or under exposed photos. This diopter will flash if the camera thinks it is not correctly exposed. If you use the Auto or P mode than you don't need to worry about it. In manual mode this diopter is good metering guide for us. I don't follow that metering guide 100%.
Right next to it in the bracket should be the number of available shot remaining for you, depending on how big is your card. Mine is 4Gb therefore it only says 1.2K instead of 1200. Once I have take hundred of photos the number than will use the proper number, eg 985 instead of 0.9k.
Right next to it is use by the
Flash icon and the
question mark icon for help section. Either one of these will flash if the camera thinks you don't follow it's guide.
That are what I see so far. Anyone else to add?