updated. my review of the Kodak S1 kit zoom, 12-45 3.5-6.3 unlike on my epl5, this lens AF is perfectly accurate and fast on my friend's G5 I received this lens just now and have done some test shots with it on my EPL5, pls pixel peep as I've allowed viewing originals by anyone on my flickr, despite my English, I hope this very limited experience can give you an idea about how this lens performs. Build quality and form: this lens is just slightly smaller than the Panny 14-45, it feels rather cheap in hand, the zoom action isn't smooth and the focus ring feels loose; it has a plastic mount, big as possible rear element, lock mechanism as that found on the Oly 14-42 kit zoom, and a hood bayonet. What's interesting about this lens is that the big rear element seems to be a dust proof glass, while the true rear glass has a large diameter too and is actually moving inside, as long as I don't see any negative impact on the optical performance I'd say it's a nice idea as I've had actual problems with the dust on my Oly 14-42 II's rear element. I bought this lens alone and it doesn't come with a hood, luckily I don't think it needs one, I have only been testing it under harsh afternoon sunlight, and so far it works in sunlight no differently from my other lenses. Performance: I can't believe flickr's just having a down time at the time of writing. I'll upload somewhere else later on so you can see. It first occurred to me that the lens doesn't do AF fast in M43 standard, maybe on par with the P20 but I don't have that one right now, just a comparison with that in my memory. The MFD of this lens is 0.35m/1.15ft but then I discovered that my EPL5 sometimes confirms locked focus even when the lens wasn't able to, so it took me some time to learn to get the best focused shots as the examples here, but honestly this doesn't mean a real problem to me because it's only a limitation that happens to be on many other cameras too, the AF ability isn't that bad, and if I have a Lumix body with me I'd say it's quite possible that focus could've worked better than on EPL5. Great, flickr's back, let's seem some shots. I didn't do a scientific test, and all the processing was done in LR like I usually would, the unmodified colours are natural, nothing to worry about here; distortions at both ends are almost perfectly corrected by software, even seeing the raws in "unsupported" image viewer (Xnview, raw full size mode) I can only observe a little barrel distortion at the 12mm end, so little that doesn't even always need to be corrected in my opinion. P6212152 by jyc860923, on Flickr at 12mm, the max aperture is f/3.5; 14mm, f/3.8; 19mm, f/4.5; 32mm, f/5.8; 45mm, f/6.3 P6212159 by jyc860923, on Flickr P6212158 by jyc860923, on Flickr P6212153 by jyc860923, on Flickr P6212150 by jyc860923, on Flickr P6212142 by jyc860923, on Flickr P6212165 by jyc860923, on Flickr P6212160 by jyc860923, on Flickr P6212161 by jyc860923, on Flickr P6212164 by jyc860923, on Flickr I've never had any experience with other 12mm lens, but to me the sharp results from a lens like this is a dream come true. Say, if you get the AF and DOF worked for you, it could be sharp across the frame, sometimes the CA towards the corners is a little limiting but the resolution is there and all you need is to tick the CA correction in LR. All images are applied 25 sharpening as LR's default setting is. Now that's all I can think about it's performance. While using in on the EPL5, sometimes shutter does sound differently, like somehow delayed, could be some compatibility issue, but I have not experienced delayed start up, I just don't think I can use this lens shooting fast actions, the deep DOF could help a bit though. Pls feel free to ask if you've got any questions, thanks for reading.