I have been reading opinions on what others would get to start their lens collection. I understand the concept to look at lens that fill the need of your shooting style. The camera is a Sony SLT a57 with the kit lens. What I want to do is have a lens that will give me a good wide angle so one lens that I'm looking at is the Tokina SD 11-16 F2,8 (IF) DX. Would this be good or should I look at something like a ? - 50 F2.8. For a long range maybe something like a Tamron F2.8 AF18 - 270. Here again would it be better to have something in a F2.8 AF70 - 300. I want to keep my selection down to no more then 3 lens overall.