For those of you with the LVF1, how useful is it for manual focusing? Trying to use the LCD with adapted lenses in bright sun is difficult at best, is the LVF1 usable for that? On a related note, anyone use one of these? NIB 3" LCD Viewfinder for Panasonic GF1/GF2 LVF-43 4:3 Finder Camera | eBay Thoughts on it? Good, bad, indifferent? Possible to use with glasses? Thanks.