The Panasonic Lumix GH3 joins the Olympus OM-D E-M5 as a Micro Four Thirds with ambitions in the enthusiast/serious/pro end of the market and it's priced accordingly. I am testing the GH3 for a forthcoming issue of Advanced Photographer and I took it today to take a few snaps of my great niece's christening shooting with the 12-35mm f/2.8.
On the whole I thought it performed pretty well. Due to the low light inside the church and as well as the village hall where we had a buffet lunch, I was forced to shoot at high ISOs, 800 to 3200 with most were shot at ISO 1600. The image above was exposed at ISO 800. Image quality was sound, though, and I didn't feel the need to increase the default noise reduction settings in Lightroom 4.
Autofocusing was good but it was not infallible - I tried single AF zone, 23 AF zone and face detection. Maybe I was expecting too much and I had to use the manual override on several occasions and just reshoot. It didn't seem to lock onto fine details as reliably as I would have like. Exposures were much more consistent except in contre jour situations and due to mixed lighting conditions I had to do some tweaking during Raw processing in Lightroom 4.
Read the full test in Advanced Photographer, issue 30.