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| Oh, you kids. Before electronics, there was this format called "film." It was measured by horizontal resolution: such as 16mm, 35mm; later 70mm, which was really 65mm in the camera, but 70 in release prints to accommodate the sound tracks. And those were just the surviving formats. But, let's not stop there. That measurement included the sprocket holes. You also had a choice of the image sizes that were recorded between, or astride the holes. Vistavision, Techniscope.... http://en.wikipedia.org/wiki/List_of_film_formats (Greg, 480 and 1080 are vertical measurements, not horizontal. 720 is the confusing one, because it's both the horizontal measurement for NTSC SD, and the vertical for HD 1280x720.) On Feb 24, 2012, at 8:40 AM, Greg Balint wrote: > Resolution has always referred to the amount of horizontal lines, (480, 720, 1080) probably due to the abomination that is interlacing. Refresh rates also work horizontally, which is why if you take video of a screen and the refresh rate is not synced with the camera, it has a visible line crawling down it. > > This is the only reason I can think of that we do this. I always just state the whole resolution, as I have since my early days with computer monitors. (800x600, 1024x768, all old 4:3 resolutions) > > ////Greg Balint > ///Art Director / Motion Graphics Designer > delRAZOR.com/ > > On Feb 24, 2012, at 9:34 AM, Mike Janson <michaelmailing@yahoo.com> wrote: > >> quick q - i'm curious why 1280x720 resolution tends to be referred to as 720 rather than 1280. i always have to catch myself when a client asks for 720, seems bass-ackwards. thanks! >> |
