Kindly rate the optical viewfinder options available for use on the E-PL2. Is the VF-2 the ONLY really GOOD option, with all other mechanisms in a distant 2nd place? Or do any of the "others" (and less expensive options) actually work quite well? I recently bought a nice used E-PL2, and the more I use it, the more I'm liking it. But using the LCD to compose and see the shot before pressing the shutter button, is a problem on bright sunny days. I'm almost always pleased with the results when reviewing on the computer, but it would be nice to have some instant feed back before taking the pictures in the first place. I'm aware of several options for doing this, not the least of which is Oly's own VF-2. Are the others even worth considering? Thanks.