Do I need to worry about the dimensions of the screen?
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Posted by Bradley Burton on December 6, 2004, 4:24 am
Please log in for more thread options size of the projector to fit that, am I correct? There doesn't seem to be a "best size" specified for the image on the projectors I looked at. Thanks. | |||||||||||||
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Posted by Fred Mau on December 6, 2004, 10:26 pm
Please log in for more thread options CRT Projectors seem to be designed with specific screen sizes in mind - e.g., my (admittedly older) Sony VPH-1030 was designed for either a 72" or 100" (diagonal) screen, other sizes require complex internal adjustment. LCD Projectors are more flexible, minimum size depends on how closely you can focus, maximum size depends on how many lumens you have. On a more practical note, ideal screen size really depends on viewing distance. While it's initially tempting to build a screen as large as possible, you CAN get too large, so that you eyes and neck get tired just following the motion across the screen (been there, done that). I don't know if there's been any serious scientific study of the subject, but my own informal experimentation indicates the maximum comfortable screen size - measured diagonally and based on a 4:3 aspect ratio - is about 0.625x the viewing distance. - FM - | |||||||||||||
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Posted by Rich M. on December 6, 2004, 10:59 pm
Please log in for more thread options On Mon, 06 Dec 2004 01:24:55 GMT, "Bradley Burton"
>I am thinking about getting an 80 x 60 in screen. I can adjust the image
>size of the projector to fit that, am I correct? There doesn't seem to be a >"best size" specified for the image on the projectors I looked at. > > >Thanks. > 80x60 is what I am using and I love it. I like watching a lot of old movies, especially musicals, from the 40's and 50's which is well suited to the 4:3 aspect ratio or the 80x60 screen. I also hook my computer to it to browse the Internet or play games, like Flight Simulator. The only disconcerting thing is when watching Hi-Def signals and DVD's which are usually the 16:9 aspect ratio. There are black bars on top and bottom of the image which you will see from time to time on regular TV where the program is letter boxed. As far as fitting the image to the screen, that would matter what projector you purchased. Each projector has a throw distance which tells you for a given image size, say 80x60, the distance the projector is mounted from the screen. You will have a little latitude with the zoom control. This is a good source for that info. You can select a model projector and use the projector calculator to determine mount location. http://www.projectorcentral.com/projection-calculator.cfm Here is an article on the 4:3 or 15:9 debate: http://www.projectorcentral.com/formats.htm Make sure to read this before buying any one particular format. Rich M. | |||||||||||||
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Posted by Rich M. on December 6, 2004, 11:02 pm
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>Here is an article on the 4:3 or 15:9 debate:
Make that 16:9. Rich M. | |||||||||||||
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>size of the projector to fit that, am I correct? There doesn't seem to be
>a "best size" specified for the image on the projectors I looked at.