My P30+ should be on its way in the near future. I will have a bit of time (I can't remember exactly how many days) to evaluate it before deciding whether to return my "regular" P30 and keep the P30+. So, I'll be doing some side-by-side testing. I'm looking for thoughts as to areas of comparison. I'd be happy to write up a mini-review for this site.
By way of reference, I have two Contax 645 bodies, so I can have the P30 on one body and the P30+ on the other. I'll just swap the lens back and forth (probably introducing some dust along the way) so that I will be comparing the backs, not the lenses used. I'll use the Contax 120mm Macro, because the resolving power of that lens is outstanding and should therefore allow me to get closer to the "limits" of each sensor than using one of the other (still very good) Contax lenses. The disadvantage of using a manual focus lens is that I'm not the best at manually focusing, but I'll be as careful as possible. I'll shoot on a tripod, both with strobes and available light. I will not shoot pictures of brick walls or resolving charts, because I find that boring. Nor do I plan to test shooting speed, other than noting my purely subjective impressions. I'll try to do a bit of available light work outdoors, some product shots with strobes, some product shots with natural light, as well as hopefully snagging a model for some studio portraits. I'll shoot both tethered and untethered. I'll process the shots in C1. (Do I get the new version of C1 on a CD with the new back or should I download it ahead of time? I forgot to ask my dealer).
Here's what I've come up with so far in terms of what to look for:
(1) High ISO differences
(2) Color rendition
(3) LCD Screen
(4) Very long exposure differences (not really important for my shooting, but will test it if I can set up an easy way to do so)
(5) Startup time
Anything else anyone's interested in?