Finally I'm planning to enter the medium format league. I'm planning to get a leaf credo 40 or IQ 140 with phase / mamiya Df body with 80mm LS lens. I need your help to select other lenses, but no idea about the other lenses. I'm in a tight budget, so planning to buy used lenses from ebay or B&H. Later I can upgrade. I do fashion and portraits, products and industrial shoots. If I can use a macro lens, which acts as a portrait lens, that will be great. I may consider buying wide angle lens later. Currently I'm shooting with nikon 800e. My fashion shoots mostly go as billboards or huge printouts in streets or in shops. So I need great detailing in the photos. Kindly suggest some great bargain lenses. Also the difference between the two backs Credo40 and IQ140. Thanks in advance.