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Author Topic: Are All Lumens Equal?  (Read 2394 times)

Bonnie Lackey

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Are All Lumens Equal?
« on: June 14, 2006, 10:41:49 pm »

We have larger format Infocus projectors in our rental department. We are thinking about adding some of the smaller size, fit in a bag that will go over your shoulder type new projectors.  If these projectors state they are 2000 lumens are they equal to a 2000 lumen larger projector?

Bonnie
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Ken Freeman

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Re: Are All Lumens Equal?
« Reply #1 on: June 14, 2006, 11:20:35 pm »

Yes...In fact that technology has improved so much that we now turn and burn our projectors....a new 2500 lumen XGA (will kick the pants of your 40 pound Proxima 9300 series) is about $1400 and weighs about 6 pounds.  Biggest problem with these is the lamp costs 40% for what the projector costs and it fits into a backpack...if you know what I mean.

Ken
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Don Boone

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Re: Are All Lumens Equal?
« Reply #2 on: June 15, 2006, 01:41:46 pm »

Sure they are, just like all watts are same. Very Happy

Actually after several years of exaggeration, specsmanship (not a real word), and out right lying; specs are pretty comparable today.
If you’re looking to add some small/medium sized projectors, I suggest you look at something in the 3000 lumen range and run them in the low lamp mode for about 50 % longer lamp life.

BTW having looked inside plenty of small to medium sized projectors (we do component level repair) it’s pretty obvious that NEC, Sharp & Sony have a higher build quality than most of the others.

Don
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Brad Weber

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Re: Are All Lumens Equal?
« Reply #3 on: June 17, 2006, 02:17:40 pm »

Yes and no.  If you are comparing ANSI lumens to ANSI lumens or full white to full white lumens, then yes.  As long as the same measurement method was used you should be able to directly compare them.

Also be careful with lens options, the numbers quoted by manufacturers are usually with the "standard" lens, optional lenses may change the actual output of the projector due to some light being lost in the optics.
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Brad Weber
muse Audio Video
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