I'm trying to budget for an entry level MFD system, to get my feet wet and so I'm looking at buying a fat pixel back or an older Pentax645d.
My budget is not a lot, around 5K, so my options are pretty limited. I was thinking AFDIII with a P20/P21 or maybe a Pentax645D since they are going down in price. The camera would mostly be used for portraits and probably be tethered.
The pentax sounds pretty nice, but I understand the sync is limited to 1/125, which can be worked around with ND filters, but is not great. I'm also not too keen on getting the shutter replaced after only 50K shots. I used to have a Pentax 645N so I'm familiar with the handling, which is pretty nice.
The AFDIII/DF seems like it has more flexibility, plus I can use capture one, but the backs are a little older and I'm not sure how they would compare against the 645D back.
I haven't looked at Hasselblad, just because the lenses seem more expensive.
I wish I was looking at IQ backs, or something a little better, but I simply don't have the budget right now. I do like the slow pace of working with MF which is why I'm interested in getting a system and trying it out.