but a build-in flash (and no build-in VF).
Perfect. I wish my E-P2 had a built in flash. They are super useful for fill and the occasional emergency.
Absolutely right. The little extra flash is a top contender for most easily lost/broken/left behind item of the year.
Yesterday, I was photographing singsings at the Warwagira festival in Rabaul, New Guinea. Needed a touch of fill on dark skins in bright light forming dense shadows. Flipped up the G1 flash and got straight into it.
The other thing -- you can't use that little flash unless you fit it into the accessory shoe. Hello! What if you are using the VF-1 (as I will be with the 17mm f2.8) or the VF-2?
The G1 is a wonderful camera but it has two three failings -- lousy color compared with Oly, OIS instead of IBIS, and for daily, walk-around use, bulk/weight.
My goodness, to what judgement have we arrived? G1 bulky and heavy? Come on. It is still one of the lightest and smallest system cameras. Bodies like EP-mini and even a E-PL3 won't really fit in nthat category, because lenses such as the 100-300mm wouldn't be a very good fit to this small size bodies. Additionally, OIS is superior for long focal range as the finder image is stabilized.
In my opinion, cameras such as the G1 or GH2 are perfectly suited for daily, walk-around use. The size and weigth of those aren't "failings", there are just not made to be ultra-pocketable. Pocketability and the virtues of true, versatile system cameras are to some extent contradicting requirements.
With regard to the E-P3, it would have been no engineering rocket science to put both, the tilt screen and the flash into the body. No idea why Olympus has not done so. Cost is not argument as Panasonic shows with the G3.
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Thomas