dko22
Mu-43 Regular
I've now had my GH2 around 10 days and have been running a few tests to compare to the G1. Haven't gone near video yet! Initial impressions are pretty favourable. What I was looking for was a clear improvement in noise levels, both for high ISO and for filling in shadows -- which is basically what DR is about (though RAW files also have a lesser amount of highlight recovery but it's easy to blow highlights even with a FF camera).
The images show G1 v GH2 indoor tests at different ISO's for illustration at two different typical light levels. To show you can easily get a pretty clean ISO 6400, I also did an outdoor GH2 shot with a 100% crop for quick reference. It's self-evident to me that the less the light, the more a camera will struggle so the usable max ISO is between 1600 and at least 6400. G1 is more like 500 to 2000
Finally, one from each camera showing what happens with 50 "fill light" (with an illustration of the unaltered shadows). Here ISO 160 is clearly better than the G1 base ISO 100, both in noise and also contrast and colour. G1 ISO 200 allows only a small shadow lightening before the image falls apart whereas ISo 320 with the GH2 is still fairly comfortable in general.
All the images for comparison are full size LR3.3 RAW exports with 20 luminance and sharpening up to around 50/45 -this tends to give the best results as a preset, I find. The GH2's are sampled down to 12mp to allow equal comparison to the G1. Of course this is only a small and unscientific sample --hundreds of images would in fact be required for a detailed comparison but it gives an idea anyway. But it at least gives some typical shooting scenarios which official reviews often totally fail to do.
Zenfolio | David Owen | G1 v GH2 high ISO and DR
IQ in undemanding light at low ISO is pretty similar though the GH2 has an edge in crispness it seems. The EVF is noticeably better and I love the customisable buttons
David
The images show G1 v GH2 indoor tests at different ISO's for illustration at two different typical light levels. To show you can easily get a pretty clean ISO 6400, I also did an outdoor GH2 shot with a 100% crop for quick reference. It's self-evident to me that the less the light, the more a camera will struggle so the usable max ISO is between 1600 and at least 6400. G1 is more like 500 to 2000
Finally, one from each camera showing what happens with 50 "fill light" (with an illustration of the unaltered shadows). Here ISO 160 is clearly better than the G1 base ISO 100, both in noise and also contrast and colour. G1 ISO 200 allows only a small shadow lightening before the image falls apart whereas ISo 320 with the GH2 is still fairly comfortable in general.
All the images for comparison are full size LR3.3 RAW exports with 20 luminance and sharpening up to around 50/45 -this tends to give the best results as a preset, I find. The GH2's are sampled down to 12mp to allow equal comparison to the G1. Of course this is only a small and unscientific sample --hundreds of images would in fact be required for a detailed comparison but it gives an idea anyway. But it at least gives some typical shooting scenarios which official reviews often totally fail to do.
Zenfolio | David Owen | G1 v GH2 high ISO and DR
IQ in undemanding light at low ISO is pretty similar though the GH2 has an edge in crispness it seems. The EVF is noticeably better and I love the customisable buttons
David