I've very successfully used 135mm for that purpose (environmental portraiture), including the Optar you mention. If you need wider, then a 90 might be your best option. For close-up portraits, something inthe range of 190 - 300 is my preference... but not the 300 used on a SuperGraphic. Two of my favorite lenses that might fit your desires are the Gundlach Radar and Kodak Commercial Ektar