And I would mention I don't use the 55-110 zoom.
You should it has become my favourite lens and I have used this lens on advertising shoots. The quality is amazing. I use it hand held with the ZD and I rarely use the Canon 5D these days except for the higher iso. I also use the 150 3.5 mm which is super sharp. I have compared this 150 to the Hasselblad 150 ( H series). I think the Mamiya has the slight edge, not a surprise as you are really comparing Mamiya to Fugi.
I used the ZD for 2 jobs last week, (weblink with full res images below) I had it for 7 days in all, like all pieces of equipment, there is a learning curve with this camera. After all is said and done, I really liked it, I would have liked it even MORE if they released it when they said they would, it's results are not as great as a 22MP back from Sinar (eMotion22), which I tested earlier this year, but, looking at the broader picture of handling/feel, weight, auto focus lenses and image quality overall (at 100ASA or less) it's a competent camera if you're not rushed! Yes, the buffer is a problem, yes, the screen is small and crappy, but it's so easy to shoot with, I did most of my shooting handheld - that's how I shoot film, so, that's how I'll shoot digital, image quality does suffer, but then it suffers when shooting film too. So, here's a link to a few shots I took, and a link to full resolution 16-bit tiff files. I was particularly interested in how this camera handles 'green' something my cann seems to struggle with.
[a href=\"http://www.stoqq.com/zd]http://www.stoqq.com/zd[/url] webpagehttp://www.stoqq.com/sinar-test/zd
< hires 16-bit images 125mb each.
If they do a version 'II' it will be awesome if they upgrade to 16-bits, increase the RAW buffer, provide a larger screen and less noise at anything above 100ASA