HD16 HD16 is the film format Aaton advocates for lightweight and mobile filming. We have received so many inquiries following our previous ads in American Cinematographer that we would like to tell you more: A. Featuring the 1.77/1 aspect ratio common to all HDTV proposed standards (this is the only parameter they have in common...), HD16 can be transferred to high definition video with total respect to the composition of the filmmaker's picture. As of today an HD16 negative offers the same options for NTSC transfer as that of the 1.85/1 ratio 35 mm negative, i.e. either cropping each side to fit the present TV screens with no real loss of relevant information, or (better) adopting the letter-box system which gives a "feature look" even to documentaries. Last but not least an HD16 negative can be blown-up to 35 mm release prints with negligible reframing on top and bottom of the B. HD16 picture. exploits all the available real estate of 16 mm monoperf stocks, thus reducing by 40% the relative size of