I have never tried using filters before. I have always played it safe and went with what was before my lens. But now I am wanting to try to spice things up a little and experiment. I mostly shoot landscapes and nature scenes(Sunsets, Sunrises Waterfalls) In about 4 weeks I am going on a fall folage shoot. Which filters are good to start out with?? I have no idea which ones to purchase. I really need some advice in this area. Thanks so much for any information.