[Mario Bertazzo]

To see people, The subject is so: The proportion 16:9 for the format PAL is, Jon barrie as well clarifies, Whenever you use 1050×576 square pixels. If you look exactly the same if you use to compose your graf in Photoshop format with 720×576 pixels provides 1,4587, That if you use a composition of 1050×576 with square pixels and the reason is very simple, The proportion of pixels 1,4587 only means that the width of your screen will be 1,4587 times as high, Regardless of the size of your TV or projection. If you multiply 720 pixel square for 1,4587 will get an approximation result to 1050 (1050,264 exactly) so that this issue is explained Las proportions. You can see in Photoshop which are included a series of templates Standares formats, In photography and video you will have resolved the issue using the proper proportion to your project. If you use template with 720×576 pixels 1,4587 and immediately with your project adapatra premiere CS4.