I got the 20mm about 45 days ago, after comparing it to the 25 1.4, as it wasn't substantially worse in any area that concerns me, and the price for the latter wasn't really justified in those terms. The low light capability was a bonus, but I was interested in a walkaround lens that I could leave on for a lot of situations, as landscape shooting often requires a lot a lens/filter changes and combinations. Or it does for me, in any case. Until I picked up the GH2, I was primarily shooting landscapes either pretty wide, at 18mm, or with a lot of reach, above 200, so the 40mm equivalent was/is fairly new to me. The first time I ever played around with a prime was a Canon 50mm 1.8 on a 7D, and that was an 80mm equivalent, but I liked the results and the convenience of not switching gear around. A. All of these were taken at various places in the Owens Valley, between the eastern Sierra and the Inyo and White ranges, where I and my girlfriend are sometimes twice a month. The ones that look similar were taken from a point off of Jean Blanc Road, north of Bishop, looking (in order) NE, E, N, W and then S. "The Road North" is the first thing I've shot that ever got listed on Flickr Explorer. B. I've simply GOT to get a quality, rectangular series of ND filters, grad, reverse, etc.. I usually just keep a CP screwed on to most of my lenses, since we're so frequently around water, but when we're not, esp. with the crappy quality of the 46mm I've got on this 20mm, opportunities can be lost. I'm starting to be convinced that bad CPs are worse than no CP at all, and I've got both. The "Western Wall" shot clearly indicates this. C. The only real disadvantage I can see in the 20 is that it hunts in extreme low light, but I don't shoot often in such conditions, so it's fine with me. D. All of these were done in LR4 Beta, and various websites tend to compress and darken them. They all look great (to me) in LR on my machine, but at some sights, they do not appear as I processed them. For more detailed descriptions, click through for the text at Flickr. Storm Forming, Owens River by tanngrisnir3, on Flickr Pre-Sunset Clouds, White Mountains by tanngrisnir3, on Flickr The Road North, Owens Valley by tanngrisnir3, on Flickr Western Wall, Bishop by tanngrisnir3, on Flickr Evening Light, Owens Valley, Jean Blanc Road by tanngrisnir3, on Flickr Morning Light, Owens Lake by tanngrisnir3, on Flickr Road into Windmills, Mojave Desert by tanngrisnir3, on Flickr And, finally, just for comparison's sake, on done with a Minolta Rokkor 200mm 3.5, equivalent to 400mm. Not an easy thing to keep steady. Infinite Towers & Heat Waves, California Desert by tanngrisnir3, on Flickr So while I'm happy with the lens in overall terms, I'm really looking forward to trying out the 7-14 on an extended basis, and/or for the upcoming f2.8 Panasonic zooms. I learned to shoot with an LX5, and miss the ease and flexibility of not having to change lenses so often in order to get longer/wider reaches.