A question for anybody who has the correct answer; :P
When I see behind the scenes stuff for movies, they have their 16:9 monitor with multiple crop marks, but for the "cinema wide" crop mark (greater than 2:1 (the 2.39:1 or what not)) it is never positioned at the centre vertically...
Why?
I would guess it has something to do with the composition. Example: the horizon should normally not be placed ideally in the middle of the frame but rather 1/3 or 2/3 of its height (or maybe golden ratio). To satisfy this rule for all formats, it requires matching the position of 1/3 of their height, not their centers.
Probably because the material is created one camera for various later playback formats...
(https://s.studiobinder.com/wp-content/uploads/2018/12/Aspect-Ratio-Definition-Movie-Image-Aspect-Ratio-Examples-1024x756.jpg)
Quote from: yokashin on August 19, 2019, 03:08:01 PM
Probably because the material is created one camera for various later playback formats...
This argues for why it shouldn't be placed there, those crops happen in the centre.
Quote from: ArcziPL on August 19, 2019, 02:22:19 PM
I would guess it has something to do with the composition. Example: the horizon should normally not be placed ideally in the middle of the frame but rather 1/3 or 2/3 of its height (or maybe golden ratio). To satisfy this rule for all formats, it requires matching the position of 1/3 of their height, not their centers.
Ok, but why not frame the shot so that it is 1/3 or 2/3 the way down, instead of cropping off centre for uneven lens distortion.
I'd ask a DP for a definitive answer:
https://cinematography.com/index.php?/forum/4-lighting/
After pondering on the first response and the image from the second response and combining the two responses :P I think i can see whats going on now.