I own Lumix 14-42. A decent lens. AF-C works OK. But the zoom ring is... so cheap. No damping at all.
I just bought GH1 + 14-45 at $650 from Adorama. After 3% cashback from mrrates.com, net total is $630. I plan to sell a set of new GH1 body and 3 months old 14-42 around $500 + shipping. Hopefully higher price at ebay.
Basically $130 or less for replacing 14-42 with 14-45.
Smaller and heavier. Bigger front element. Yes shiny metal mount. Zoom ring has more damping. Convenient OIS button. Overall more solid and better looking than 14-42. At both ends especially at longer end, 14-45 showed more corner sharpness in photos. I haven't done video yet. Last year I heard 14-45 is on par with 14-140.
Definitely a keeper. This is a no-brainer upgrade. 14-42 going to ebay with a new GH1 body.
Yeah. It is kind of cool. You could tell your children that back in the past Japan produced electronics, and, you don't believe that, even lenses. But each yeah less and less people will believe you.
not a big fan of pixel peeping... but lightroom 3 made it so easy. just press 'C' to compare with prev photo. it synchronizes zooming and positioning, too.
i really don't mind getting a sharper lens at little more cost :)
You can also see the difference in edge sharpness here http://www.seriouscompacts.com/f41/mirrorless-camera-standard-zoom-shootout-impressions-558/ One of the nice things about the 14-45 is that the 14mm is really a nice image. It isn't just the sharpness, it is like have a reasonably good 14mm lens, just not as fast. OTOH, the 20mm takes better pictures and video, and with a wide angle adapter, takes amazing video in the 12-14mm range.