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Posts referring to the Mitsubishi XD450U ColorView

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Topic:   480p?? Why, why, why????

Someone please help me. I am losing my mind over my "simple" hobby of trying to screen movies outside this summer for my neighborhood. I recently bought a used Mitsubishi projector that has a DVI-D port and HDCP compliance. I thought that I'd be able to screen Blu Rays through this projector with an HMDI cable and a female HDMI to DVI-D adapter. I bought a used blu ray player (Magnavox MBP522xx) because it had audio component out, which my current blu ray player does not have and therefore unusable with the DVI-D port. I plug everything in and all I get it 480p on the screen, which looks awful. I had previously plugged in my other Blu ray player to test the HDCP compliance and got terrific 1080i without sound, so I know the projector can handle it. I took the magnavox blu ray player and plugged it into my HD 40" tv and it displayed beautiful 1080p (this was with a different cable). So does anyone know what's happening? To recap: Blu Ray player 1 sends a 480p image to projector Blu ray player 2 sends a 1080i image to projector Blu ray player 1 sends a 1080p image to tv Is it cables, the adapter, the HDMI signal in BR player 1 produces? I can't figure it out. All this gear is used. Like I said, this is a simple hobby. I also have an old proxima dp6150 so i've been enjoying movies outside for a few years, but always through a laptop connected via vga. I got caught up in blu rays because I got the mitsubishi for a little bit more than if i'd just bought an HDCP passthrough box from my old Proxima. I just ordered a (hopefully) better quality cable that is HDMI to DVI-D so maybe losing the adapter will help. Thanks! I love this forum. I've been reading posts for years.
Forum: Projectors
 
Topic:   XD450U Hazy White Artifacts

I have noticed recently a couple of hazy light artifact spots on the projected image (I only use this for movies). These hazy light spots are more noticeable in dark sceens of a movie. It is some kind of refraction of light ... as if the lense needed cleaning (to see the image one would imagine that there must be a couple of dried water drops on the lense causing this refraction of light...yet the lense is perfectly clean and appears to be without any flaw). Maybe this is a common problem and simple to resolve. Since the lense appears to be flawless I am wondering if the inside surface of the lense should be cleaned. I also wonder if the lamp case and the mirrors in the lamp chamber could cause this artifact (it all looks fine to me so I hesitate to mess around with this stuff). Anyway...wondering if others have run into a similar problem and what this might be (light hazy white spots that are annoyingly showing up in darker movie sceens... best way to describe this is thatyou'd think there were a couple of dried water drops on the lense causing this artifact, and yet the lense appears to be perfect. Any thoughts? Thanks All
Forum: Projectors
 
Topic:   XGA DLP with at least 2000 Ansi and 1:2000 Contrast Ration

Not sure what you are trying to achieve - a sketch would help. Any reason one shouldn't use keystone? > If you have an arrangement in which you can use a fixed screen you can mount the screen so that the top of the screen leans toward the projector and tilt the projector so the lens is pointing slightly upward and thereby avoid a keystone correction. It makes for a more complex and unconventional installation, but I think it can be a great way to do make use of a good projector that just lacks a lens shift. > [QUOTE=Paul GA|Oct 6, 2005 3:21:34 AM] The Mitsubishi xd450u has 2600 lumens (high bright mode), xga resolution, and 2200:1 contrast, and a dvi with hdcp, but only has a 2X color wheel, but unless you are particulary sensitive to rainbow artifacts it is a beautiful, bright machine. I could see the rainbows when I first go the machine (when I was really looking for them), but I haven’t noticed one in a long time. For me the 2X color wheel is not an issue at all. It is particularly good at color accuracy (skintones), that is if you have it set in the sRGB mode. If you don’t have sRGB turned on the color accuracy suffers greatly, but turn it on and it’s fantastic, never see an orange or yellow skin tone again, it is always dead on accurate. Using the sRGB setting does sacrifice a little brightness, but considering how bright the xd series projectors are that's a small consideration. I have one of these set up in my living room projected onto a 148" 3:4 screen with good ambient light control and it looks beautiful (at least I think so). If you don't need a dvi input you can save several hundred dollars if you go with the xd400u or if you need even more light output the xd480u. Also considering the 5000 hour lamp life (in economy mode for the xd450 and xd480, the xd400 has only one brightness mode and lasts 5000 hours) it is a very economical machine to own. A less prominent feature that I really like is that it has a sealed light engine, meaning that there are no air filters to change or clean and that no dust can enter the path of light inside the projector so it requires little maintenance. For the money it is hard to beat. For some people I think the biggest downside will be its throw angle if they want to ceiling mount it. If you invert the projector the top of the screen will be several inches lower than the centerline of the screen. So unless you are willing to make a keystone correction or use a tilted fixed screen you will end up with the top of your screen being several inches lower than your ceiling and depending on the type of mount you select maybe a couple feet. This could be the limiting factor on the size screen you can use. If you have a high ceiling or a vaulted ceiling this becomes less of an issue and allows you to mount the projector higher where it may also be a little less conspicuous. Also remember ceiling fans really like to get in the way. If you have an arrangement in which you can use a fixed screen you can mount the screen so that the top of the screen leans toward the projector and tilt the projector so the lens is pointing slightly upward and thereby avoid a keystone correction. It makes for a more complex and unconventional installation, but I think it can be a great way to do make use of a good projector that just lacks a lens shift. Don’t mount the projector more than 15 degrees out of level (Mitsubishi claims that doing so can result in premature lamp failure this is also true with many other machines). I know that the xd400u xd450u and xd480u were not really designed to be home theater machines, but they do a good job of it for a good price. By the way use the get bids feature on projector central you can almost always get a better deal that way than by just looking at prices online. Another thing you might consider if you can wait a little while is buying either the xd460 or the xd490 when they come out (I think they are scheduled to be available around November 2005). They will have the new chip from Texas Instruments featuring the brilliant color technology which is supposed to dramatically improve color reproduction while being efficient at transmitting light. And according to the find projectors section of projector central they will have a lower suggested retail price than the xd450 and xd480. Which if they sell for as much below msrp as the current xd series and they do what they are supposed to, they will be hard to beat. [/QUOTE]
Forum: Projectors
 
Topic:   Can't play DVDs from laptop

Thank you both for the help. It now works fine, and I was able to show my family a good DVD for Christmas. Thanks again.
Forum: Projectors
 
Topic:   Can't play DVDs from laptop

I cannot get my projector to play DVDs. Can anyone help? It projects slides and even .avi files OK. I use it with a Dell Inspiron 2650 laptop. The DVD appears on the laptop, but not in the projected image. My email is syrdavid@postmaster.co.uk (I posted this message 10 days ago in the portables forum but got no replies)
Forum: Projectors
 
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