My turn for a preliminary report on the A900 and Zeiss 24-70mm.
Here's a one para summary of the image quality: It's very good, but not quite as good as the Mamiya ZD. The A900 has very good dynamic range but not quite as good as the ZD, or Nikon D700 for that matter. But its still pretty good.
Sharpness from the Zeiss 28-70mm is very good, but bokeh is poor and somehow the lens seems to have less DOF than an equivalent focal length on the ZD. It should be the other way around of course, so I'm not sure what I'm seeing. I never completely trust zooms to match fixed focal lengths no matter how highly rated they are.
The image is of a sugar factory in Bury St Edmunds, Jono will know it well :toocool: It was decoded from raw in SilkyPix, where perspective correction was also applied.
No colour shifts or nasties, noise quite reasonable, but I have only shot at 200ISO so far. I will have a crack in the studio next.
The camera itself if nice to use and easy to understand. I tend to use pretty much the same settings so I don't need ludicrously complex menus and options. Its not quite as incredibly nice to use as the D700 is, but its close enough.
So far, I'm happy, in a balanced way, but looking forward to giving it a more thorough work out to determine if it will replace the ZD for most day to day photography. I guess the fact I'm even considering a small format digital camera replacing a medium format camera says a lot in favour of the A900