Heather
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Registered: 1st Aug 02
Location: Ellesmere Port
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if the projector was about 4.5meters away from a 2.34m x 1.35m screen, will i be able to fill it?
lookin at some projectors and i cant figure out how the 'throwing distance' works. some say that they can project from 4meters to infinty but does that mean it can only porduce a small sceen size if it was 4 meters away or could i get the above screen size?
sorry if that sounded complicated, im just really stuck on how it works 
the spec of the projector says this, hopefully someone of here can make sense of it lol
Screen Size 100 inch diagonal (m) 2.9 - 3.5m
Screen Size 120 inch diagonal (m) 3.5 - 4.2m
Screen Size 150 inch diagonal (m) 4.4 - 5.3m
Screen Size 200 inch diagonal (m) 5.9 - 7.0m
Screen Size 300 inch diagonal (m) 8.8 - 10m
Screen Size 40 inch diagonal (m) 1.1 - 1.4m
Screen Size 60 inch diagonal (m) 1.7 - 2.1m
Screen Size 80 inch diagonal (m) 2.3 - 2.8m
cheers 
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Heather
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Registered: 1st Aug 02
Location: Ellesmere Port
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been thinking about it. the screen i want is 92" wide, so by readin the above info, if the projector is 2.9 - 3.5 meters away, will thi be okay? have i understood it correctly?
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John
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Registered: 30th Jun 03
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Yes you have.
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John
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Registered: 30th Jun 03
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Although they figures are for diagonal.
Work out the size of the diagonal you want.
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Melville
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Registered: 4th Jun 03
Location: Newcastle upon Tyne
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Thats what it looks like to me.
If it was only 1m away it would be slightly less than 40 inch etc.
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Melville
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Registered: 4th Jun 03
Location: Newcastle upon Tyne
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quote:
Originally posted by John
Although they figures are for diagonal.
Work out the size of the diagonal you want.
pythagoras 
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Heather
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Registered: 1st Aug 02
Location: Ellesmere Port
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oh ye, forgot that was for diagonal. anyobdy know the diagonal distance for a 2.35 x 1.35m screen? or how do u find it out
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John
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Registered: 30th Jun 03
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quote:
Originally posted by Melville
quote:
Originally posted by John
Although they figures are for diagonal.
Work out the size of the diagonal you want.
pythagoras
Lol you work out the diagonal size from 92" inches then.
I know it can be done but it would involve thinking.
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Melville
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Registered: 4th Jun 03
Location: Newcastle upon Tyne
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c2=a2+b2
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Heather
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Registered: 1st Aug 02
Location: Ellesmere Port
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but then again, the diagonal lenght will be smaller than 92" wont it? so it doesnt matter, it shoudl fit no matter what.
or unless im just bein dumb here and iv got it wrong way round
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John
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Registered: 30th Jun 03
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Thats about 104 inches diagonal.
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Heather
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Registered: 1st Aug 02
Location: Ellesmere Port
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oh forget what i just said lol, it will be bigger than 92"
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Heather
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Registered: 1st Aug 02
Location: Ellesmere Port
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well if its 104" that means that if i have the length at least 3.5meters away i should be fine then wont i? 
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John
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Registered: 30th Jun 03
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quote:
Originally posted by Melville
c2=a2+b2
I know how pythagoras works.
But you try and work out the dimensions from only having 92".
Rmemeber the aspect ratio has to be either 4:3 or 19:9 aswell.
Was easy to work out when heather gave the length and height.
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Heather
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Registered: 1st Aug 02
Location: Ellesmere Port
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quote:
Originally posted by John
quote:
Originally posted by Melville
c2=a2+b2
I know how pythagoras works.
But you try and work out the dimensions from only having 92".
Rmemeber the aspect ratio has to be either 4:3 or 19:9 aswell.
Was easy to work out when heather gave the length and height.
screen size is 53" x 92"
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Melville
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Registered: 4th Jun 03
Location: Newcastle upon Tyne
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lol I was just working out a few calculation based on aspect ratio 
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Heather
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Registered: 1st Aug 02
Location: Ellesmere Port
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so how do u work it out then, iv no idea what that above equation means lol
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John
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Registered: 30th Jun 03
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104" is the digonal size you want.
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Heather
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Registered: 1st Aug 02
Location: Ellesmere Port
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o rite, thought that was jst a guess from before lol. cheers  much appreciated
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