I have taken a ton of pics and posted them on here with my FZ18.  I assume the 28 is the next generation.   All of my field photos or pics I take in the season are with it.  Its got about the best zoom and glass (lieca) out there for a point and shoot.  You cannot get a different lens for the 18 and assume that for the 28, unless they have changed things.  You'd need a DSLR.  However, that point and shoot has more zoom than you can really get with a DSLR.