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post #91 of 522 Old 01-12-2009, 10:43 AM
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So far I'm trying to see what's not to like about this projector.

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post #92 of 522 Old 01-12-2009, 10:56 AM - Thread Starter
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Finally some numbers.

57 hours on the lamp.
D65
Aemc model CA813 light meter
Edit: Measurements were taken with dynamic black engaged.

2315 lumens hi lamp open iris
1768 " low lamp open iris
2094 " hi lamp closed iris
1640 " low lamp closed iris

Contrast to follow.
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post #93 of 522 Old 01-12-2009, 11:03 AM
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WOW!!!

Is the projector calibrated??

Again, what is they typical lumens drop for a UHP lamp in the first few hundred hours??

Thanks!!

Thaks for the info Alan... this piece may serve my needs!

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post #94 of 522 Old 01-12-2009, 11:42 AM
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Looks like for price vs performance vs quality, might be a possible winner.

Thanks for the infos Alan.

[]s,
Fernando
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post #95 of 522 Old 01-12-2009, 11:54 AM
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Quote:
Originally Posted by thebland View Post

WOW!!!

Is the projector calibrated??

Again, what is they typical lumens drop for a UHP lamp in the first few hundred hours??

I would say a 30% drop should be in your calculations after the lamp stabilizes. The drop might be less [20%-25%] with this new beauty by Sim2.

Those are real good numbers posted by Alan. However, it's at 57 right now and the drop is continuous in the first 150 odd hours.

For a 12 foot scope screen this seems like the ticket. Since you have a 14 feet screen you may have to wait a little longer to confirm whether it can drive it or whether you will need quicker lamp changes. Good luck in your hunt.
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post #96 of 522 Old 01-12-2009, 12:01 PM
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Quote:
Originally Posted by Haroon Malik View Post

I would say a 30% drop should be in your calculations after the lamp stabilizes. The drop might be less [20%-25%] with this new beauty by Sim2.

Those are real good numbers posted by Alan. However, it's at 57 right now and the drop is continuous in the first 150 odd hours.

For a 12 foot scope screen this seems like the ticket. Since you have a 14 feet screen you may have to wait a little longer to confirm whether it can drive it or whether you will need quicker lamp changes. Good luck in your hunt.

Thanks.

I have had my Qualia almost 5 years and have accumulated a total of 900 hours. I'd be happy to change bulbs once a year at the low UHP lamp cost (versus Xenon).

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post #97 of 522 Old 01-12-2009, 12:13 PM
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Quote:
Originally Posted by Alan Gouger View Post

Finally some numbers.

57 hours on the lamp.
D65
Aemc model CA813 light meter
Edit: Measurements were taken with dynamic black engaged.

2315 lumens hi lamp open iris
1768 " low lamp open iris
2094 " hi lamp closed iris
1640 " low lamp closed iris

Contrast to follow.


Alan:

I don't understand something I am assuming the dynamic Black engaged means the Dynamic Iris is on? If so you can further adjust the Iris to open and closed ?
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post #98 of 522 Old 01-12-2009, 12:13 PM
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Quote:
Originally Posted by thebland View Post

Thanks.

I have had my Qualia almost 5 years and have accumulated a total of 900 hours. I'd be happy to change bulbs once a year at the low UHP lamp cost (versus Xenon).

Jeff,
This might be the projector for you. Check the bulb pricing so that you have a figure in your mind. The bulb prices vary by manufacturer and model. The initial impressions of this projector are nothing but excellent.
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post #99 of 522 Old 01-12-2009, 12:24 PM - Thread Starter
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Quote:
Originally Posted by LJG View Post

Alan:

I don't understand something I am assuming the dynamic Black engaged means the Dynamic Iris is on? If so you can further adjust the Iris to open and closed ?

Yes, the projector also has a 2nd iris ( manual ) which you can adjust independent to the dynamic iris while the dynamic iris is working. There is no control over the dynamic iris. You simply engage dynamic black to turn it on.
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post #100 of 522 Old 01-12-2009, 12:26 PM
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Quote:
Originally Posted by LJG View Post

I don't understand something I am assuming the dynamic Black engaged means the Dynamic Iris is on? If so you can further adjust the Iris to open and closed ?

I believe there is a manual iris in the lens in addition to the dynamic system using something before the chips to modulate the light (other than the bulb).

Jeff,

Do you feel the Qualia with iris open gives you enough light for your screen? Sounds like this projector would be brighter than the Qualia. Also, you could consider changing out for a brighter material than the Firehawk (like a StudioTek 130 that wouldn't have as much falloff toward the sides).

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post #101 of 522 Old 01-12-2009, 12:27 PM
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Oh, that is a great feature, currently with the HD6K-M it is either Manual or Dynamic not both.
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post #102 of 522 Old 01-12-2009, 12:30 PM
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It will be interesting to see, when Alan posts the CR numbers at the various iris positions, if the manual iris, which is in the lens, affects ANSI, where the new iris, right after the lamp would not.

Phil
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post #103 of 522 Old 01-12-2009, 12:31 PM
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The high lamp closed iris is still higher than the HT 5000 with a new lamp.

The 5000 has a fixed cats eye iris.

Art

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post #104 of 522 Old 01-12-2009, 12:40 PM - Thread Starter
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Quote:
Originally Posted by Free View Post

It will be interesting to see, when Alan posts the CR numbers at the various iris positions, if the manual iris, which is in the lens, affects ANSI, where the new iris, right after the lamp would not.

No iris in the lens or optical path. One is after the lamp and the other is in the integrator rod ( spelling ). This maintains full ANSI contrast regardless your settings.
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post #105 of 522 Old 01-12-2009, 12:41 PM
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Quote:
Originally Posted by darinp2 View Post

I believe there is a manual iris in the lens in addition to the dynamic system using something before the chips to modulate the light (other than the bulb).

Jeff,

Do you feel the Qualia with iris open gives you enough light for your screen? Sounds like this projector would be brighter than the Qualia. Also, you could consider changing out for a brighter material than the Firehawk (like a StudioTek 130 that wouldn't have as much falloff toward the sides).

--Darin

Right now, I am on HIGH LAMP and IRIS Partly CLosed (in between full open and closed) with my Qualia.

Darin, I switched to a 14' wide Studio Tek 1.3 gain Microperf last year.

I subjectively feel things are slightly dim in its calibrated setting. Now, when I watch TV and jack up the contrast, etc.. it seems pretty bright (at some PQ costs of course).

This piece has a smaller footprint and is quiet... It may do it for me.

My Home Theater of the Month- Le Petit Trianon

There are more than a handful of [op amps] that sound so good that most designers want to be using them as opposed to discreet transistors. Dave Reich, Theta 2009
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post #106 of 522 Old 01-12-2009, 12:49 PM
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Quote:
Originally Posted by Alan Gouger View Post

No iris in the lens or optical path. One is after the lamp and the other is in the integrator rod ( spelling ). This maintains full ANSI contrast regardless your settings.

Aha!! This is excellent. I didn't realize that both iris were out of the optical path. Must be the reason for the claim that the ANSI number is into 4 digits. Will be very interesting to see if you measure that high (if it is possible with your room conditions).

Phil
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post #107 of 522 Old 01-12-2009, 12:53 PM
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Quote:
Originally Posted by haroon malik View Post

i would say a 30% drop should be in your calculations after the lamp stabilizes. The drop might be less [20%-25%] with this new beauty by sim2.

Those are real good numbers posted by alan. However, it's at 57 right now and the drop is continuous in the first 150 odd hours.

For a 12 foot scope screen this seems like the ticket. Since you have a 14 feet screen you may have to wait a little longer to confirm whether it can drive it or whether you will need quicker lamp changes. Good luck in your hunt.

yes that right but please note that this pr. use a new uhp lamp
design (unishape) that may is differnt fom normaly uhp
lamps.
anyway this number more than confirm my estimate from 2000 lumen with post number 33 and thats very nice.

I guess a new pr. will have at least 2500 lumen with a lamp at 5 hours
and this at D65!

now the big question is the cr. the unit have.

even if its not as high as the pdf say (till to 35000:1) note that the light out that have be measured are not that far of from the pdf numbers
(up to 3000 lumen) may
now the cr. is also close to the pdf number.

may at arround 20000-25000:1 range

sad my screen is even with 2500 lumen to big as i like it very bright!
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post #108 of 522 Old 01-12-2009, 01:18 PM
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Quote:
Originally Posted by W.Mayer View Post

this number more than confirm my estimate from 2000 lumen with post number 33 and thats very nice.

It does indeed. I thought it would be around 1400-1500.

I really wasn't expecting that at all.

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post #109 of 522 Old 01-12-2009, 01:25 PM
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Quote:
Originally Posted by thebland View Post

.It may do it for me.

If those numbers are typical, a 14ft perf will be no problem.

High lamp, closed iris will start you at 29fL

High lamp, open iris will start at 32.

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post #110 of 522 Old 01-12-2009, 03:10 PM
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Can one use that manual second IRIS to cut down on the light output when the bulb is new ??
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post #111 of 522 Old 01-12-2009, 03:20 PM
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Quote:


Can one use that manual second IRIS to cut down on the light output when the bulb is new ??

Yes, I believe so. Plus, one can lower the lamp output.

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post #112 of 522 Old 01-12-2009, 03:26 PM
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I remember reading that the iris in the C3X1080 didn't have much range, but I was surprised to see how little difference the manual iris in the Lumis made. It only lowered the white level by about 10%. I wonder if it has much effect on on/off CR. I'm guessing it won't be much given the small range, but it could if there is a spot in the same plane as that iris with bad black level that closing the iris down blocks.

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post #113 of 522 Old 01-12-2009, 03:29 PM
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Quote:
Originally Posted by coldmachine View Post

If those numbers are typical, a 14ft perf will be no problem.

High lamp, closed iris will start you at 29fL

High lamp, open iris will start at 32.

Thanks for the calculations.. Those numbers are music to my ears (and over 2X as bright as I am getting right now)~!

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There are more than a handful of [op amps] that sound so good that most designers want to be using them as opposed to discreet transistors. Dave Reich, Theta 2009
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post #114 of 522 Old 01-12-2009, 03:56 PM
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Alan Gouger
I hope we will get both static and dynamic contrast?
How low dE did you have in the measured calibration?

Do you think the static cr will be higher or lower than HT5000? I guess a hair lower. Art is your HT5000 about 6k:1?

Mattias Ohlson
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post #115 of 522 Old 01-12-2009, 04:11 PM
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Quote:
Originally Posted by thebland View Post

Thanks for the calculations.. Those numbers are music to my ears (and over 2X as bright as I am getting right now)~!

Just to be clear, I used a gain of 1.15 for a cloth of 1.3 gain with perfx2. I think that's right, or close enough.

You will aslo find that the lamp aging has less effect than on other PJs.

The HT5k is amazing for that. I lost 20% at 200hrs then it flattened out at 23%, and that was the worst HT5k id heard of. Some are actually under 20%. Hopefully the Lumis will be similar.

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post #116 of 522 Old 01-12-2009, 04:18 PM
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Quote:
Originally Posted by Ohlson View Post

Do you think the static cr will be higher or lower than HT5000? I guess a hair lower. Art is your HT5000 about 6k:1?

Thats an interesting question. The 1080 is significantly higher than the HT5000.

They may have used a wider iris to get more light, at the expense of some native. There have also been some major changes made to the internals ans chassis, but Im not sure of any of those have impacted the light.

Ive always disliked DIs. Ive heard from a couple of people that this unit is the best implementation yet as its so fast and silent. Alan's unit seems to support this.

I hope to be able post my own observations tomorrow or Wednesday.

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post #117 of 522 Old 01-12-2009, 04:37 PM
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Quote:
Originally Posted by Art Sonneborn View Post

So far I'm trying to see what's not to like about this projector.

Art

My thoughts exactly!

What sort of lamp life do these have? What sort of throw distance for 10' - 14' scope screens?

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post #118 of 522 Old 01-12-2009, 04:58 PM
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Quote:
Originally Posted by thebland View Post

Thanks for the calculations.. Those numbers are music to my ears (and over 2X as bright as I am getting right now)~!

Jeff once you see what over 20fL looks like on your screen you will not look back,that I can assure you. With 25,000:1 and if real over 1000:1 ANSI contrast this is the piece to beat. I'd call this the UberKontrast.

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post #119 of 522 Old 01-12-2009, 05:03 PM
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Quote:
Originally Posted by Ohlson View Post


Do you think the static cr will be higher or lower than HT5000? I guess a hair lower. Art is your HT5000 about 6k:1?

Yes ,about 6100:1 but, as has been stated, although the cats eye in the lens does increase sequential contrast it may hurt ANSI contrast a bit. The Lumis keeps the iris out of the lens.

Art

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post #120 of 522 Old 01-12-2009, 05:10 PM
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Originally Posted by Art Sonneborn View Post

I'd call this the UberKontrast.



I can see that already pulling him in like a frikkin' tractor beam. I really hope he doesn't let us down, I want an UberRant...Rantus Maxumus.

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