I want to start photography. I want to do nature photography (animals, foliage, anything natural) and action shots (mountain biking, maybe skiing). would the canon suit my needs? I don't want to spend a ton of money as this will be my first real camera. and i have this lens which I don't know if it will work (or if it even works) HANIMEX AUTO ZOOM 70-140MM F:3.8 Ø49 No. 110706 MC it's dirty but looks intact.