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OPTOMA HD91 FULL LED DLP full hd 2D 3D Ready end 2013 - Page 16

post #451 of 1170
Quote:
Originally Posted by biliam1982 View Post

I thought I read this LED Optoma would be using a different type of DI and not a mechanical one so maybe it'll be better.

Actually dimming the LED's doesn't improve CR like closing a physical lens iris.
post #452 of 1170
Quote:
Originally Posted by noah katz View Post

Actually dimming the LED's doesn't improve CR like closing a physical lens iris.

Yes they amplify brighter parts in the image and mess with the gamma too.
post #453 of 1170
Quote:
Originally Posted by HTCrazy View Post

OTOH my LG $400 PA70G LED PJ has had zero loss in the first year. How many bulb projectors can you say that about.

During some research into LED's, I read they will increase in brightness initially before they start dimming.

Did you take multiple reading over the year to track it?
post #454 of 1170
Quote:
Originally Posted by hifiaudio2 View Post

Well I attempted to register and ask a question on this thread:

http://www.myav.com.tw/bbs/showthread.php?s=&threadid=20462879

But as far as I can tell there has been no answer. There is an Optoma representative that posts in that thread, so I was hoping to get some clarification around the brightness measurement.

Hi,

it seems you have an answer...


http://translate.googleusercontent.com/translate_c?depth=1&rurl=translate.google.com&sl=zh-CN&tl=en&u=http://www.myav.com.tw/bbs/showthread.php%3Fs%3D774c8f11ef7fd8af87a90ec9368aec72%26threadid%3D20463106%26pagenumber%3D4&usg=ALkJrhhp5XIz5PhBaC0UUYTVNqcpNfnLKA



with those figures, it's 540 lumens at D65. Not bad (in 2D)
post #455 of 1170

Hifiaudio2 can rule this one out. No way 540 lumens is enough to light up his 160" wide screen. Not enough in 2D, much less 3D.
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post #456 of 1170
Yep - out for me. Really too bad.
post #457 of 1170
Quote:
Is there a real world calibrated measurement of the Cine 1000 somewhere? So its 1000 lumens are true?

I haven't seen one. But I did see it light up a 165" diagonal StudioTek 130 screen at CEDIA. It had no problem doing that.
post #458 of 1170
Quote:
Originally Posted by Craig Peer View Post

I haven't seen one. But I did see it light up a 165" diagonal StudioTek 130 screen at CEDIA. It had no problem doing that.

Hi,

maybe the "Helmholtz-Kohlrausch" effect wink.gif :

http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_t&hl=fr&ie=UTF-8&u=http%3A%2F%2Fwww.prad.de%2Fnew%2Fnews%2Fshownews_beamer7227.html

http://en.wikipedia.org/wiki/Helmholtz%E2%80%93Kohlrausch_effect
post #459 of 1170
540 Lumens. Well, told you so. wink.gif
post #460 of 1170
Quote:
Originally Posted by biliam1982 View Post

During some research into LED's, I read they will increase in brightness initially before they start dimming.

Did you take multiple reading over the year to track it?

That could be true - it DOES seem brighter than it was initially. It's been about a year so far with maybe 600 hours which would have already lost significant brightness with my former bulb projectors. Hard to imagine it losing that much brightness but time will tell.
post #461 of 1170
I must say I am still very excited to learn more about this projector as more reviews appear. I am very happy with my 92" screen and I know there are many, many AVSer's who enjoy 92-106" screens... which would result in a better ft-L figure.
post #462 of 1170
At that screen size this would be the top of my (interested in) list.
post #463 of 1170
Quote:
Originally Posted by CoryW View Post

I must say I am still very excited to learn more about this projector as more reviews appear. I am very happy with my 92" screen and I know there are many, many AVSer's who enjoy 92-106" screens... which would result in a better ft-L figure.

I'm still excited too, and it would be OK for my current screen, a Da-Lite HCHP 116" wide scope. But I would like to go larger in size one day without having to pay close to $10k for a projector that can do it.

Quote:
Originally Posted by hifiaudio2 View Post

At that screen size this would be the top of my (interested in) list.

How big is your screen?
post #464 of 1170
160" wide AT.
post #465 of 1170
Quote:
Originally Posted by AV Science Sales 5 View Post

Hifiaudio2 can rule this one out. No way 540 lumens is enough to light up his 160" wide screen. Not enough in 2D, much less 3D.

He is going to need a 4K LED projector after owning the 1000ES
post #466 of 1170
Looks like my only real option is to get the 1000es again.
post #467 of 1170
Quote:
160" wide AT.

You need a Titan LED projector for that screen !! smile.gif
post #468 of 1170
Quote:
Originally Posted by hifiaudio2 View Post

160" wide AT.

I calculate about 7-8 ftl's but if you figure in Runco's claim of 60% perceived brighter image for LED's, you'd have about 12 ftl's.

Def not enough for 3D but close enough for 2D.
post #469 of 1170
60%? Lol I haven't seen the effect called that much! I had the led/ laser Panasonic hybrid in my theater for a day. I measured around 600 lumens. It was dim and horrible. Maybe the LED effect wasn't in force because of the laser part.
post #470 of 1170
Quote:
Originally Posted by hifiaudio2 View Post

60%? Lol I haven't seen the effect called that much! I had the led/ laser Panasonic hybrid in my theater for a day. I measured around 600 lumens. It was dim and horrible. Maybe the LED effect wasn't in force because of the laser part.

I'm getting around 12ftL and it seems comparable to 15-16ftL with my LED projector
post #471 of 1170
Quote:
Originally Posted by Seegs108 View Post

let alone to take apart a projector, wire it properly and then put it back together with the hopes they did everything correct.

Oops... eek.gif

My LCD panels went bad on my Panny 700 after 5 years. Bought a dead PJ for like $100 and rebuilt mine... stripped it down to the frame, and cleaned every bit (including disassembling the lens and polishing every element).

I hadn't intended to go as far as I did (ie, lens), but just kept going - photographing everything along the way to ensure I put it all back. Worked like new for 3 more years. Replacement panels are going bad, time to throw it out and get a new PJ. But I agree - not something many people would be crazy enough to try.

post #472 of 1170
So no one in the USA has one yet? Can it be bought from where its available and shipped here?
post #473 of 1170
Quote:
Originally Posted by blee0120 View Post

I'm getting around 12ftL and it seems comparable to 15-16ftL with my LED projector

That is because 12 ftl always seem comparable to 15-16 ftl.
post #474 of 1170
Quote:
Originally Posted by steak2 View Post

That is because 12 ftl always seem comparable to 15-16 ftl.

Not to me
post #475 of 1170
Hi

HD91 specifications are available on Optoma Europe Web site with a distance calculator :

http://www.optomaeurope.com/projectordetailshc.aspx?ShowMenu=HC&PTypedb=High%20Definition%20Home%20Cinema&PC=HD91

There are one point on the "Helmholtz-Kohlrausch" effect.

http://www.optomaeurope.com/distancecalc.aspx?PC=HD91

Remember, the HD91 is the "long throw" model.
post #476 of 1170
post #477 of 1170
Quote:
Originally Posted by Thebes View Post

Hi

HD91 specifications are available on Optoma Europe Web site with a distance calculator :

http://www.optomaeurope.com/projectordetailshc.aspx?ShowMenu=HC&PTypedb=High%20Definition%20Home%20Cinema&PC=HD91

There are one point on the "Helmholtz-Kohlrausch" effect.

http://www.optomaeurope.com/distancecalc.aspx?PC=HD91

Remember, the HD91 is the "long throw" model.

Hi,

there are also :

User Manual :

http://www.optomaeurope.com/uploads/manuals/HD91-M-en.pdf

Quick Start Guide :

http://www.optomaeurope.com/uploads/quickstarts/HD91-QS--.pdf

Brochure :

http://www.optomaeurope.com/uploads/brochures/HD91-B-en.pdf
post #478 of 1170
Quote:
Originally Posted by steak2 View Post

That is because 12 ftl always seem comparable to 15-16 ftl.

It is not possible to judge such subtle differences by remembering it.
post #479 of 1170
Quote:
Originally Posted by steak2 View Post

It is not possible to judge such subtle differences by remembering it.

I always set two settings on my jvc projectors with one between 10-12ftL for darker movies to maximize contrast and the other 16-18ftL for action movies with not so many dark scenes. My action movies always seemed too dim at 12ftL. I don't get that dull feeling now. But I will be trying to get another jvc soon to compare it with the DP
post #480 of 1170
I looks like more info is being posted and that is encouraging that maybe a release in the US might be sooner rather than later. It looks like it might be available in the UK.
http://www.optoma.co.uk/projectordetailshc.aspx?PTypeDB=High%20Definition%20Home%20Cinema&PC=HD91
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