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Sound Reinforcement - Forums for Live Sound Professionals - Your Displayed Name Must Be Your Real Full Name To Post In The Live Sound Forums => SR Forum Archives => Pro AV FUD Forum Archive => Topic started by: Tim McMillian on August 14, 2010, 01:17:00 pm

Title: Screen Size/Aspect Ratio
Post by: Tim McMillian on August 14, 2010, 01:17:00 pm
Hey all -
THis is my first time here... I have been lurking for a while, I hope to contribute sometime, but I have a noob question for ya'll!


I've asked this question to a couple AV guys, none seem to be able to confidently answer it.

WIth my 9x12 FF screens, those are built with the intention of using a 4:3 aspect ratio, correct? So when I am projecting simple Powerpoint out of a laptop, I can fit the screen.

So how is it that I am able to fit that same image perfectly to a 10x10 cradle screen? Since 4:3 isnt a perfect square - why does it fit?

Title: Re: Screen Size/Aspect Ratio
Post by: Milt Hathaway on August 14, 2010, 01:20:45 pm
Perhaps you are only pulling 7.5' of screen up out of the cradle.
Title: Re: Screen Size/Aspect Ratio
Post by: Tim McMillian on August 14, 2010, 01:24:33 pm
Right, Ok so I'm not crazy (just not paying enough attention). Shooting a 4:3 image onto a fully extended 10x10 screen shouldnt fit properly, correct?


So why do they make square screens? Would that be a ... 1:1 aspect ratio?
Title: Re: Screen Size/Aspect Ratio
Post by: Milt Hathaway on August 14, 2010, 01:43:41 pm
Tim McMillian wrote on Sat, 14 August 2010 12:24


So why do they make square screens? Would that be a ... 1:1 aspect ratio?


Yup, 1:1. It's a holdover from the days of overhead projectors and slide shows where some slides would be rotated 90 degrees and need that vertical height.
Title: Re: Screen Size/Aspect Ratio
Post by: Tim McMillian on August 14, 2010, 02:04:59 pm
Ok, great. Hey thanks for the quick response and help.