Hello guys. I was unbelievably crazy this morning and bought myself a 70-200 4.0 IS. In my lens collection, I am thinking that this lens will replace my current 55-250 IS II, what do you think? Additionally I have one question, will this in fact at my ASP-C sensor be like 112-320 mm (multiplied by 1.6) and will there be a huge difference? And is in fact my 55-250 ACTUALLY 55-250 on my ASP-C too, or is there some kind of conversion going on there too?