Hello, I'm a spanish photographer and i work with P3 and Sinar 54H. Mostly I do studio products, but now i'm taking some portraits. Wich system do you recomend to me. I want it Autofocus, because it's more confortable to me. I have a Rollei6008 Integral but it hasn't AF.
Please show me options.
If you want to retain your Sinar back and shoot portraits, a Hy6 body is your best bet. It's a very nice body and there are several happy owners here.
If you wanna start all over again; with strong tethering support, PhaseOne/Leaf/Mamiya and Hasselblad are your top choices.
The Phamiyaleaf ecosystem allows the most options to mix and match. Personally, I like Leaf colors the best for portraits.
The Hasselblad system has a great autofocus system if you shoot shallow depth of field portraits.
If you don't mind a 3:2 crop and don't really require the modularity of an MF system or strong tethering, a Leica S2 is a good option.
If you're on a budget and again, don't miss the modularity bit, a Pentax 645D is hard to beat for value for money.