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 Showing results 1 to 25 of 1000 Search took 1.14 seconds. Search: Keyword(s): ; Posts Made By: Highjinx
 02-19-2017, 02:51 PM Replies: 636 Views: 21,364 Posted By Highjinx Thanks for taking the time. All the online... Thanks for taking the time. All the online calculator I looked at came up with the same result.....possibly using the same suspect maths. I can rest easy now!
 02-19-2017, 01:01 AM Replies: 636 Views: 21,364 Posted By Highjinx That makes sense....one is direct light from the... That makes sense....one is direct light from the projector, the other is reflected light scattered in all directions, specially if it's a unity gain.
 02-19-2017, 12:44 AM Replies: 636 Views: 21,364 Posted By Highjinx Yeah... it's just a curiosity thing with the... Yeah... it's just a curiosity thing with the conversion/convertors(Fc to Fl)...they all have same result! :(
 02-19-2017, 12:30 AM Replies: 636 Views: 21,364 Posted By Highjinx Re low lag image quality, what negatives other... Re low lag image quality, what negatives other than lower sharpness have you guys noticed? Bugger!......confusion in my head! ...
 02-19-2017, 12:06 AM Replies: 636 Views: 21,364 Posted By Highjinx I see what you are saying. I'm going by the... I see what you are saying. I'm going by the online converter. Fc to FtL I think my issue is my understanding(possibly incorrectly) that a Foot Candle does not equal a FtLambert as indicated by...
 02-18-2017, 11:37 PM Replies: 636 Views: 21,364 Posted By Highjinx Heck...lets clear this up.... :) The convert... Heck...lets clear this up.... :) The convert says 1 foot candle = 3.14 Foot-Lamberts http://www.convert-me.com/en/convert/illuminance/footcandle.html?u=footcandle&v=1 Thus 22.8Fc = 71 Ft/L ...
 02-18-2017, 11:27 PM Replies: 636 Views: 21,364 Posted By Highjinx Highjinx here....so are you saying the converters... Highjinx here....so are you saying the converters Foot-Candles to Foot-Lamberts are incorrect? Please see here: http://www.convert-me.com/en/convert/illuminance/footcandle.html?u=footcandle&v=1
 02-18-2017, 10:49 PM Replies: 636 Views: 21,364 Posted By Highjinx Are you saying all the online converters are... Are you saying all the online converters are incorrect?
 02-18-2017, 10:26 PM Replies: 636 Views: 21,364 Posted By Highjinx The 3.14 is only a coincidence :p Multiply... The 3.14 is only a coincidence :p Multiply FC x 3.14 to get FtLamberts http://www.convert-me.com/en/convert/illuminance/footcandle.html?u=footcandle&v=1
 02-18-2017, 10:12 PM Replies: 636 Views: 21,364 Posted By Highjinx Love to know if there is a contrast hit in low... Love to know if there is a contrast hit in low lag mode........ ;)
 02-18-2017, 09:31 PM Replies: 636 Views: 21,364 Posted By Highjinx Woofer...how wide is your screen? @ 66Sqft... Woofer...how wide is your screen? @ 66Sqft Gain not accounted for. X9500 = 1504lumens = 71Ftlamberts (22.8Fc/22.8Lumens/sqft) X7500 = 1234lumens = 59Ftlamberts (18.7Fc/18.7Lumens/sqft)
 02-18-2017, 09:26 PM Replies: 636 Views: 21,364 Posted By Highjinx Wouldn't is hilarious if all this time most of us... Wouldn't is hilarious if all this time most of us have confused Foot-lamberts being equal to Foot-candles which is equal to Lumens/Sq foot! :D
 02-18-2017, 09:14 PM Replies: 636 Views: 21,364 Posted By Highjinx Position the meter at the screen and take your... Position the meter at the screen and take your reading. Beam footprint thus unit area intensity is important. Impressive gear!~ :D
 02-18-2017, 09:09 PM Replies: 636 Views: 21,364 Posted By Highjinx The confusion is here: The Ft/l conversion you... The confusion is here: The Ft/l conversion you are using is incorrect 1Ft Lambert is .314 Lumens/sqft or .314 Fc 5 Lumens/sqfoot or 5Fc = 16 FtLamberts 2000lumen projector/66sq...
 02-18-2017, 08:32 PM Replies: 636 Views: 21,364 Posted By Highjinx Well let's assume a 25 Fc reading at the screen,... Well let's assume a 25 Fc reading at the screen, meter pointing towards the projector. Screen 16:9 full width area = 50sqft Screen gain 1.26 25Fc x 50sqft = 1250 Lumens or 25lumens/sqft ...
 02-18-2017, 08:05 PM Replies: 636 Views: 21,364 Posted By Highjinx 33fc x screen area(16:9 full width) in sqft x by... 33fc x screen area(16:9 full width) in sqft x by screen gain then divided by sqft of screen area 16:9) multiply by 3.14 will give you foot lamberts I think many folks confuse a Fc =...
 02-18-2017, 07:38 PM Replies: 636 Views: 21,364 Posted By Highjinx Me thinks folks are mixing up Ft candles with... Me thinks folks are mixing up Ft candles with foot lamberts. Ft candles = Lumens/sqft To convert Ft candles or Lumens/sqft to Ft lamberts one needs to multiply by 3.14
 02-18-2017, 07:20 PM Replies: 636 Views: 21,364 Posted By Highjinx https://www.translatorscafe.com/unit-converter/en/... https://www.translatorscafe.com/unit-converter/en/luminance/14-7/foot-lambert-lumen%2Fmeter%C2%B2%2Fsteradian/
 02-18-2017, 07:10 PM Replies: 636 Views: 21,364 Posted By Highjinx multiply by 3.14 multiply by 3.14
 02-18-2017, 07:08 PM Replies: 636 Views: 21,364 Posted By Highjinx Candela/sqft or lumens/sqft Candela/sqft or lumens/sqft
 02-18-2017, 06:55 PM Replies: 636 Views: 21,364 Posted By Highjinx 140" Diagonal 2.37:1 will be around 66sqft for... 140" Diagonal 2.37:1 will be around 66sqft for the 16:9 1.26Gain 23Fc reading around 29Lumens/sqft 1.26Gain 28Fc reading around 36lumens/sqft ......or there abouts'...I think!!
 02-18-2017, 06:38 PM Replies: 636 Views: 21,364 Posted By Highjinx You need to use a 16:9 area based on the width of... You need to use a 16:9 area based on the width of your screen as the panel is 16:9
 02-18-2017, 06:25 PM Replies: 636 Views: 21,364 Posted By Highjinx Woofer possibly used the 2.37:1 area rather than... Woofer possibly used the 2.37:1 area rather than the 16:9 size of the full screen width in his calculation......
 02-15-2017, 08:30 PM Replies: 4,020 Views: 163,910 Posted By Highjinx Ok, thanks. Wasn't aware. Perhaps a better... Ok, thanks. Wasn't aware. Perhaps a better comparison would have been the Sony VLP1100ES vs VPL5000ES, lamp vs laser. Similar maximum contrast from a new non degraded paneled projector? Circa...
 02-15-2017, 07:58 PM Replies: 4,020 Views: 163,910 Posted By Highjinx I intend to as soon as an opportunity is... I intend to as soon as an opportunity is available or presents itself. I'm not saying the trade offs at present with this unit makes it a bad unit, what I am saying it should have been a much...
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