I would like to know what some of you who are lens savvy would recommend as a good lens for my A-700. This would be for portraits that would give a nice bokah background that won't break the bank, if that is possible. I currently have my Minolta 5D kit lens which is a 18-70 5.6. Also a couple of old Minolta film camera lenses. I want to get something newer and possibly faster. Any recommendations? Di