Hi! I have a Minolta AF mount camera and am currently maxing out my 28mm wide. It just isn't wide enough for what I need, being indoors, there isn't room to just back up further. Is there some easy way to see without having anything wider to say I should be looking for something like the 17-35's or the 19-35's or so forth? I'm just concerned about getting something that either wouldn't be wide enough, or is too wide, as well as expense, as I can't go affording the G series. Any suggestions?