Digital cameras

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1) does this matter?

"For Star Wars: Episode III – Revenge of the Sith the more advanced Sony HDC-F950 was used, with higher resolution and better color reproduction than its predecessor. The film was cropped to a 2.40:1 aspect ratio from its native 16:9 frame. As a result, only 817 of the 1080 vertical pixels were actually used"


2) does this matter? from a forum re The Hobbit

"According to RED's overview of the REDCODE RAW format, just below 3:1 is mathematically lossless, and anywhere from 5:1 to 8:1 is accepted on most productions. The Hobbit was shot at 5:1, TV shows usually shoot at 8:1, and some web series will go up to 10 or even 11:1, especially if it's mastered in 1080. "