If you couldn't follow the story you might want to try something simpler. Thor 2 might be more ya speed! Great film, the consistency on Thor's hammer throughout the film is flawless and leaves you feeling satisfied at the end of the film. I thought about his hammer for days afterwards....
ED = extra-low dispersion glass elements, reducing chromatic abberation. Not reducing the price of the lens, unfortunately.
AL = aspherical elements, used in wide angle lenses to get a flatter focus field and better corner/edge sharpness. Like ED, it costs more.
IF = internal focusing. Only glass elements inside the lens moves when you focus, the rear and front elements keep in place. The lens keeps the same size at all focusing distances. A bit more complicated for the engineers, thus adds to the price of the lens.
Daniel Acuña reacted to Lucian in Kendy Ty and the T2i - one guy doing amazing things with a 5 year old DSLR