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Sharp xv-z17000 : New dlp full hd 3d projector - Page 5

post #121 of 551
2/14/11 at 9:12am
Modern high gain screens don't have the issues old ones did. The Sharp may have higher brightness in 2D than many projectors, but in 3D mode you are getting less than 40% of the brightness. That is where a high gain screen comes it. Gray screens were only a good option when projectors had bad blacks. That isn't a problem now. Ambient light was one reason for them, but that was solving the wrong problem at that point, as the gray screen lowers bright levels as well as black levels. The high gain screen drastically increases the bright levels making for a much more watchable picture. I had that problem, and got a high gain Vutec Silverstar and it was an excellent solution. I have it in a bat cave now, but still like it. With my Acer 5360 in 3D mode I still have plenty of brightness.
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post #122 of 551
2/14/11 at 3:31pm
Quote:
Originally Posted by mark haflich View Post
Darin. I think not the best fit is just a tad understated.

Re gain screens. Obviously the higher the gain, the bnrighter the image and 3D images are necessarily quite dim because of the method of 3D presentation and the rather limited output of light in various machines in the price class of this forum. An advantage of the Sharp is higher light output than the average HT projector here. I see little difference in a gain difference of say 0.1. The ft lamberts may change by 10%. The higher the lumens, the less impact a small changre in screen gain will appear to your eyes though if you start with a really low 3D ft lamberts, a small increase in gain may be very significant.

I strongly recommend against ever using electronic keystone etc adjustment.

Every screen has pros and cons. Most screens are angular reflective and there are many options to fill most needs. There is no free lunch. Remember every scren with a gain greater than 1.0, drops from maximum gain as one movers horizontally from screen center. Even the HP? Duh Ya. Everyone out there. Screens are passive devices. They don't amplify light. The condense it and direct the concentrated light in certain directions. If the gain is less than one, they suck up light across the spectrum, making blacks better but making whites less bright. There are many factors that go into selecting the best screen for you. Too often in forums all the counts is brightness and the fact that I bought it and so should yo. Don't you want to be as happy as I am. Screens are a complicated subject involving parameters not yet specified by screen companies.
You're right! As you move away from the "sweet spot" with the HP you get less gain. Instead of a gain of 2.8 or 2.4 to start with you might only be seeing a gain of 2.0 or 1.8! What's the problem with that? It's still a lot better than 0.9 or 1.0 or 1.3! I've gone through a number of screens and the HP is a product that actually lives up to its billing and for 3D, where you're working with a fraction of the lumens and where you need all the help you can get, this screen is a god send! You may have to readjust your screen height or seating or where you place the projector to accommodate it, or you can instead use a different screen material and live with a dull dim image that doesn't impress and gives you eye strain. If 3D is important to you, you do what you have to make it work.
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post #123 of 551
2/14/11 at 3:56pm
Quote:
Originally Posted by mrlittlejeans View Post
They could also tilt the screen down a bit rather than use keystone.
True. With a fixed screen that shouldn't be hard to do. With a drop-down I'm not sure it would be that easy to make it work well though.
Quote:
Originally Posted by mark haflich View Post
I strongly recommend against ever using electronic keystone etc adjustment.
I normally do too, but with 1080p and 3D with glasses I think there is a pretty good chance that people wouldn't see the negatives from this scaling, but would see the positives from setting up with higher gain to the viewers. Like a lot of things with home theater it is about trade-offs and sometimes we need to rethink, "A person should never ..." kinds of positions.

--Darin
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post #124 of 551
2/14/11 at 8:03pm
The 17000 appears to have the exact same lens as the 15000 so the calculator will work.
http://www.projectorcentral.com/Shar...ulator-pro.htm
For a 106" screen the front of the lens can be between 10'11" and 12'7".

I make this assumption based on plugging Art's 100" screen into the 15000 and getting the same numbers for range as he did on the 17000.
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post #125 of 551
2/14/11 at 8:59pm
I guess I need to get someone else to do the Geo Tahoe. Using this pj with a Torus might give some the high gain screen a better placement flexibility.
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post #126 of 551
2/15/11 at 11:04am
Quote:


You're right! As you move away from the "sweet spot" with the HP you get less gain. Instead of a gain of 2.8 or 2.4 to start with you might only be seeing a gain of 2.0 or 1.8! What's the problem with that? It's still a lot better than 0.9 or 1.0 or 1.3! I've gone through a number of screens and the HP is a product that actually lives up to its billing and for 3D, where you're working with a fraction of the lumens and where you need all the help you can get, this screen is a god send! You may have to readjust your screen height or seating or where you place the projector to accommodate it, or you can instead use a different screen material and live with a dull dim image that doesn't impress and gives you eye strain. If 3D is important to you, you do what you have to make it work.

exactly, although it may be nice to get the 2.4/2.8 for most people anywhere around 1.3 should work fine. So if you lose most of the gain, its fine, because you still wind up with enough gain to handle your needs and when it comes to pulldowns, this material doesnt wrinkle or get waves
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post #127 of 551
2/16/11 at 8:27pm
I just ordered the Sharp XV-Z17000 so I'll let you guys know what I think in a week or less...
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post #128 of 551
2/17/11 at 4:23am
Quote:
Originally Posted by dogone View Post

I just ordered the Sharp XV-Z17000 so I'll let you guys know what I think in a week or less...

Sounds great!
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post #129 of 551
2/17/11 at 6:36am
Quote:
Originally Posted by dogone View Post

I just ordered the Sharp XV-Z17000 so I'll let you guys know what I think in a week or less...

nice.. curious to hear all about it. Are you sensitive to RBE at all?

are you testing it for 2D & 3D, or do you still have one of the other projectors for 2D?
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post #130 of 551
2/17/11 at 8:50am
Quote:
Originally Posted by dogone View Post

I just ordered the Sharp XV-Z17000 so I'll let you guys know what I think in a week or less...

Very interested in your review! I still don't buy that the Sharp has ghosting. Something must have been off for Art. Everyone who saw it at shows said it had no ghosting whatsoever. The pixel response time of DLP is an order of magnitude greater than LCOS or LCD. I think you are really gonna like this one.
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post #131 of 551
2/17/11 at 9:10am
It would be really amazing if it had 120Hz input for nVidia 3DVision.
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post #132 of 551
2/17/11 at 12:08pm
Quote:
Originally Posted by wnielsenbb View Post
It would be really amazing if it had 120Hz input for nVidia 3DVision.
I don't think it'll work for Nvidia 3DVision, but we'll see. I too am very curious to hear from a former Sony and JVC 3D owner how the Sharp compares for 2D and in particular 3D.
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post #133 of 551
2/17/11 at 1:01pm
just received my xv-z17000. Cant wait to try out 3D in a couple hours!
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post #134 of 551
2/17/11 at 3:31pm
Quote:
Originally Posted by killervette View Post

just received my xv-z17000. Cant wait to try out 3D in a couple hours!

Let us know how this pj handles 3D and 2D for that matter.
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post #135 of 551
2/17/11 at 4:02pm
Quote:
Originally Posted by killervette View Post

just received my xv-z17000. Cant wait to try out 3D in a couple hours!

Dang it, you beat me...I started an owners thread (guess I shouldn't have) anyways, go to that thread and post your findings...We would appriciate it.
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post #136 of 551
2/17/11 at 4:05pm
Quote:
Originally Posted by zombie10k View Post

nice.. curious to hear all about it. Are you sensitive to RBE at all?

are you testing it for 2D & 3D, or do you still have one of the other projectors for 2D?

I still have 2 RS40's...And there is no way I can forget how beautiful the Sony did 2D...So I will be able to give a pretty darn good comparison when I receive the Sharp unit. I am not sensitive to RBE at all.
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post #137 of 551
2/17/11 at 4:12pm
So, here are my first impressions. Awesome! Lol. I only tested it out briefly to see how 3d looked. This is my first 3d display. I am upgrading from a Epson 1080UB projector. Both me and my wife both think this sharp pj is much crisper and has better contrast. Note: I have not changed any default calibration settings yet. It took me a bit to realize how to setup my HTPC to display the 3d content correctly. After I fixed that I was very impressed.

I think the 3d will look even better when I relocate the pj mount. Right now I am about 1 foot to far away from the screen so the image is way to big. I have a 100" screen and the image is over 1 ft off the screen. I plan to re mount it tomorrow and get everything focused.

Thanks to av science for the quick shipping!
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post #138 of 551
2/17/11 at 4:37pm
Also, quick mounting question. I think i know, but want to double check.

Should i mount the projector so that the lens in dead center of the screen? Since the lens is not on the center of the projector, i wasnt sure if there was an offset.
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post #139 of 551
2/17/11 at 4:44pm
There is a fixed offset. I don't remember the offset amount. But you take the viewing vertical dimension and multiply it by whatever the number xx is (0.xx). Somebody who remembers please post and I will edit my post. The projector should be mounted with lens center that distance above the top viewing edge or in the case of a table mount, that distance below the bottom edge.
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post #140 of 551
2/17/11 at 4:57pm
I am talking about horizontal center, not vertical. Vertical is 7.8" i believe. I meant from right to left, should the projector be centered or should the lens of the pj be centered
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post #141 of 551
2/17/11 at 7:19pm
Lens should be centered on the screen.
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post #142 of 551
2/17/11 at 8:23pm
The vertical offset is a number of degrees. Since you have the same 100" screen Art has you can use his number. If you had a bigger screen it would be a bit more, a smaller screen a bit less. The crazy thing is how there don't seem to be good specifications anywhere on the internet on this projector.
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post #143 of 551
2/17/11 at 8:36pm
Quote:
Originally Posted by wnielsenbb View Post

The vertical offset is a number of degrees. Since you have the same 100" screen Art has you can use his number. If you had a bigger screen it would be a bit more, a smaller screen a bit less. The crazy thing is how there don't seem to be good specifications anywhere on the internet on this projector.

I heard the 15000 is the same lens calculations. This page has the distance needed from the center of the lens to the screen:

http://www.projectorcentral.com/Shar...ulator-pro.htm
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post #144 of 551
2/17/11 at 8:43pm
Doh! I have never noticed it showing the offset. I have looked at dozens of those too. The offset degree number isn't posted anywhere on that screen or the projector specifications, but this is better.
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post #145 of 551
2/18/11 at 6:50am
i have the manual at home with all the specs for offset....maybe i can take a picture of the chart and post it if anyone is interested.
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post #146 of 551
2/18/11 at 6:52am
Quote:
Originally Posted by killervette View Post

i have the manual at home with all the specs for offset....maybe i can take a picture of the chart and post it if anyone is interested.

Can you scan it into a PDF then post it here?
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post #147 of 551
2/18/11 at 9:02am
Quote:
Originally Posted by Terence View Post

Can you scan it into a PDF then post it here?

Definitely not scanning the whole book But I will try and scan the chart tonight if i get home at a decent time.
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post #148 of 551
2/18/11 at 9:16am
Quote:
Originally Posted by killervette View Post

Definitely not scanning the whole book But I will try and scan the chart tonight if i get home at a decent time.

Hi.

Here's a link to the owner's manual.

http://files.sharpusa.com/Downloads/...n_XVZ17000.pdf

Larry
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post #149 of 551
2/18/11 at 9:34am
Quote:
Originally Posted by wnielsenbb View Post

Doh! I have never noticed it showing the offset. I have looked at dozens of those too. The offset degree number isn't posted anywhere on that screen or the projector specifications, but this is better.

Hi,

Page 20 of the manual, link provided in my previous posting, shows the chart with vertical offset. (Shown as dimension "H" on chart). The chart refers to "Distance from the lens center to the bottom of the image [H]", but I believe in ceiling mounted situations the dimension would refer to the Distance from the lens center to the top of the image.

Larry
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post #150 of 551
2/18/11 at 10:00am
Nice find!
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