I am new to photographing. Anyway i consider composition is the key to photography. but surprisingly there is very little about composition is written(probably i have not searched correctly). Please provide/suggest me tutorials or books about composition. (I am interested in portraits and wedding photographing)
Anyway i have couple of issues related to composition.
I have a 50D and it has 9 focusing points. But sometimes when I try to get the correct frame or the composition there is no focusing point on the subject or the auto focusing point on the subject is not working. What should i do in order to get the correct exposure ? (Should i go to manual focusing and getting the photo or should i just get the photo and consider about the composition while cropping ? this will not be practical all the time)
Also this may lead to some other issues like , producing a not correctly exposed images. Since the camera try to get the exposure of the focused point and set the exposure of the other ares related to that (even in evaluational meeting mode). How to avoid it ?