Theres an italian in the house! - Page 13 - AVS Forum
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post #361 of 522 Old 01-18-2009, 08:38 AM
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Quote:
Originally Posted by Ian_Currie View Post

Wow. Not only is the source photography outstanding, but as screengrabs, they are amazing. Hey CM, you sure you didn't upload the original photographs by accident?

They were very easy to make look good, especially as there was no scaling involved whatsoever. The originals were that good, and supplied specially for this exercise.

If SAH looks closely enough Im sure he'd be able to spot the differences quite easily. There has been some color shift as well as the degrading the native contrast of the images.

Again....Kudos Maximus to Sierra.

I will hopefully be posting some caps later of HDTV, prior to the broadcasters compression. Im also hoping to do some RED ONE caps too.

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post #362 of 522 Old 01-18-2009, 08:45 AM
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CM, do you have any numbers on your PJ? Would be interesting to compare to Alan's.
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post #363 of 522 Old 01-18-2009, 08:55 AM
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Quote:
Originally Posted by cal87 View Post

CM, do you have any numbers on your PJ? Would be interesting to compare to Alan's.

I'll have numbers tomorrow.

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post #364 of 522 Old 01-18-2009, 08:55 AM
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cm,

What is the serial number of the unit that you are testing? I want to get a version comparison of that unit, the one that Wolfgang will be testing, and the one I will have.
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post #365 of 522 Old 01-18-2009, 08:59 AM
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Yes...a thanks to SAH for the pictures; however, there was way to much emphasis on Air Force aircraft and the Thunderbirds. To even the score ...
LL
LL
LL

Dennis Erskine CFI, CFII, MEI
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post #366 of 522 Old 01-18-2009, 09:02 AM
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Three cheers for Sully...

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post #367 of 522 Old 01-18-2009, 09:18 AM
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Quote:
Originally Posted by multiblitz View Post

Does anyone know the true aperture-values of the T1, T2 and T3 optic ? That would help to have an idea what lumens to expected for the different optics and settings.

I asked this question several months ago and in lieu of a direct answer was told to contact SIM USA. I did that by email and got no reply.

Joe
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post #368 of 522 Old 01-18-2009, 09:37 AM
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Quote:
Originally Posted by Ash Sharma View Post

Jeff,
I interpret from Alans post that 2.7 is minimally is Zoomed point.
Hope you are right that 2.7 is the brightest side.
Ssh


Indeed, towards the shortest end of the throw distance for a given lens will give you the brighter image, as Alan as explained. (This is max zoom)

From my readings of the original c3x1080, though, best to stay 6 inches from either stop.

Kevin
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post #369 of 522 Old 01-18-2009, 09:38 AM - Thread Starter
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Quote:
Originally Posted by jmanthey View Post

I asked this question several months ago and in lieu of a direct answer was told to contact SIM USA. I did that by email and got no reply.


Ive reported on the T3 lens. The T2 shares the same numbers. Cannot comment on the T1 lens.
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post #370 of 522 Old 01-18-2009, 09:43 AM
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Thanks Kevin, Now I would need a ND Filter (better problem)
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post #371 of 522 Old 01-18-2009, 10:02 AM
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Quote:
Originally Posted by Kevin Snyder View Post

From my readings of the original c3x1080, though, best to stay 6 inches from either stop.
Kevin

Since the optics are different in the Lumis, I wonder if this is still necessary??

Phil
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post #372 of 522 Old 01-18-2009, 10:20 AM
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There is one experiment that can not be done. That is to set different levels of closing of the mechanism controlled by DB.

We do not know if the DB mechanism raises the native contrast beyond the measured value with DB off. DB action probably increase native.

One question we have asked is what is better 1DLP or 3DLP. With simulation companies introducing 2DLP the future question will perhaps be 2DLP vs 3DLP.

Alan Gouger / coldmachine
Which lens is the best of T1-T3. How would you rate them on
1 MTF
2 Light output
3 contrast
4 uniformity

Mattias Ohlson
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post #373 of 522 Old 01-18-2009, 10:28 AM
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Cold: ???? these are really screenshots ???? if true, amazing.
what is the sce ?

question: would it be best to go with a T2 or T3 lens in a configuration where the LUMIS would be installed at about 7.5meters from a 400-430cm scope screen in order to preserve max FTL ?
ISCO III or schneider in front.
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post #374 of 522 Old 01-18-2009, 10:29 AM
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If I remember correctly they told me the lens is Carl Zeiss!
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post #375 of 522 Old 01-18-2009, 10:31 AM
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http://www.blu-ray.com/movies/movies.php?id=998
i wonder if anyone has this one , how it would look.
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post #376 of 522 Old 01-18-2009, 10:41 AM
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Quote:
Originally Posted by Alan Gouger View Post

Ive reported on the T3 lens. The T2 shares the same numbers. Cannot comment on the T1 lens.

Hi Alan,

Yes, your numbers are probably more valuable, but they're not quite the same as having the exact f/numbers (aperture) vs. focal lengths of the lenses. There seems to be so much confusion here over nomenclature with zoom position; you thankfully avoided that problem with your description.

Joe
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post #377 of 522 Old 01-18-2009, 10:45 AM
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Quote:
Originally Posted by Digital2004 View Post

http://www.blu-ray.com/movies/movies.php?id=998
i wonder if anyone has this one , how it would look.

I have that on DVD. Some spectacular footage, ruined by some awful (and unnecessary) CGI.

I would imagine on blu-ray certain sequences will be stunning.

Sean
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post #378 of 522 Old 01-18-2009, 10:48 AM
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Quote:
Originally Posted by Digital2004 View Post

what is the sce ?

If you are referring to the aircraft shots, all the info is in the original post.

The source material was exclusively produced for testing the Lumis, and kindly supplied to me, by forum member "Sierraalphahotel". Caps were shot by a friend with tripod mounted DSLR.

If its other shots, they are DVE and StargazeHD, shot by me, handheld with a Sony Cybershot.

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post #379 of 522 Old 01-18-2009, 10:52 AM
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My jaw still hurts from where it hit the floor seeing those screenshots-- amazing that those are not straight RAW captures right out of a DSLR on the original planes.

Nice work SAH.
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post #380 of 522 Old 01-18-2009, 10:58 AM
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Quote:
Originally Posted by Art Sonneborn View Post

No, I mean do you scale to fill the panel or just discard them.

Art

If you want the cleanest image then disgard the extra pixels. Scaling from 1920 to 2048 is a nasty filter to design properly and IMO, it can never be practically done.

The extra pixels are totally useless in an HT enviornemnt with a screen size if 15' or less.

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post #381 of 522 Old 01-18-2009, 10:59 AM
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The DB implementation
I have read that there is one iris after the lamp and before the integrator rod and one in the integrator rod. Which one iris is DB controlling and which one the the manual one?
If I missed that I am sorry but a scanned through most of the thread looking for that answer.

Mattias Ohlson
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post #382 of 522 Old 01-18-2009, 11:43 AM
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Just lost my photobucket album trying to be too clever. Back up soon.

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post #383 of 522 Old 01-18-2009, 12:09 PM
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Quote:
Originally Posted by coldmachine View Post

Just lost my photobucket album trying to be too clever. Back up soon.

Like I tell my kids " well,where did you have it last?"

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post #384 of 522 Old 01-18-2009, 12:51 PM
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Quote:
Originally Posted by Ian_Currie View Post

I was referring to on/off contrast of 6500:1, not ansi. I don't think the Sim2 products suffer from low ANSI at all - that is their strength. The native on/off is not high enough to properly resolve most images. Of course I'm hoping that it's a moot point with Dynamic Black.


ok ian i think i missunderstand.
my english is may the reason.
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post #385 of 522 Old 01-18-2009, 12:58 PM
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It would be more fun if my throw wasn't just past the end of the T3 lens... My throw is 2.55 if I push my PJ back to the wall.... I'm hoping the T3 2.6 spec is conservative (so I can puh it to 2.55) as with this lens I'll get max brightness (rather than minimal brightness with the T2). I have a 14' microperf to light up.... We'll see.

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post #386 of 522 Old 01-18-2009, 01:23 PM
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i think we should not belive in numbers only.
some are important some a little some not.

most important is how this pr. looks when he is right calibratet and
not how sim2 achieve this good image right?

if there are 10 iris inside 5 adaptive and 5 not adaptive is it really that important to know or did it tells how good the pr. is?

i say no and i not care mutch about it but i do care how good the
picture at the screen is.

and one other thing.

we have now 2 units and both people report that this picture is very very good.

but this units are not the final version that sim2 will ship as they will change some things inside.

my unit i will get later this week will have 95% of this change inside
and i will soon see if this will change the light out cr. or the image quality compare to the units alan and cm have.
1 top technical expert from sim2 direct will be here for this test as well.

i hope there will be not a change it but less see it first.

good thing is i have my cinema barco pr. and a rs20 to compare it.

at thursday i may will open here a new thead but you will only find the simple numbers
inside and my personal evaluation also in a easy way.
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post #387 of 522 Old 01-18-2009, 01:28 PM
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Looking foward to it Wolfgang !

Art

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post #388 of 522 Old 01-18-2009, 01:40 PM
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Quote:
Originally Posted by coldmachine View Post

It is a combination of factors...... Look-ahead analysis ...

Do you know if this has an automatic audio delay capability to account for this if people use the audio out of the HOST box? Or is the look-ahead so small that the timing doesn't differ from some other processing time?

As I've mentioned before, if dynamic irises where used in digital cinema they could preencode for the material since they play the same content over and over, where home units have to handle basically random material (they don't know what you are going to watch). A long look-ahead could help, but then has delay issues.

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post #389 of 522 Old 01-18-2009, 02:10 PM
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Quote:
Originally Posted by W.Mayer View Post

good thing is i have my cinema barco pr. and a rs20 to compare it.

Then please be sure to compare how easy it is to see the pixels at close distance, cause I am saying that with the DCI unit you can get much closer and still be comfortable.
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post #390 of 522 Old 01-18-2009, 02:21 PM
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Quote:
Originally Posted by CINERAMAX View Post

Then please be sure to compare how easy it is to see the pixels at close distance, cause I am saying that with the DCI unit you can get much closer and still be comfortable.

i will but i guess it will be the same as you use only from a
2048x1080 chip the 1920x1080 part.

thats only a difference when the dci pr. use the big 1.2" cinema chip but the
barco have the 0.98 cinema chips inside.

i big factor in this context will be how good is the optic and as the
barco dp2000 cinema pr. will have for sure the better optic may its there better visible.

but lets see i will do this test if i not forgeth this at this busy day.
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