Does anyone own this gear? I got mine about a year ago and have had some great shots with the 18mm-55mm lens but I find I never use the 300mm lens. I do not wish to buy an expensive lens so I want get the most out of these two. I mainly take family shots, portraits and some macro stuff. Is the 300mm just for landscapes and limited telephoto or is it more functional than that? Although I look like a mega newbie I am familiar with DOF, F-stop, ISO, aperture and shutter speed so feel free to get technical!!