I just bought the 1080UB. The convergence is definatly off. One green here, one red here, etc. Esentially - all the lines on the grid have a red/green companion - probably about one pixel each.

I guess my question is how picky should i be? How perfect should I expect that it can be before sending it back.

Thanks much

I just bought the 1080UB. The convergence is definatly off. One green here, one red here, etc. Esentially - all the lines on the grid have a red/green companion - probably about one pixel each.

I guess my question is how picky should i be? How perfect should I expect that it can be before sending it back.

Thanks much

How is the convergence in the center of your screen?

How much lens shift are you using?

Not much lens shift.

A bit verticle and some horizontal. On the test pattern all the grids have red or green on the top or bottom. Even in the center. None of the grids have one sharp line. As a matter of fact - I thought that the grid might be made up of double lines till I checked it on another computer.

Could just a bit of lens **** cause this?

I purchased from projector people and now there is 13 hours on the projector - so Id hate to get a restocking fee. And I even had them QC it!

You have a similar situation as me. I also bought from them and had them QC it, but still ended up with color shift (20% lack of red on the right 1/3 of my screen)

Call Epson directly. Since you are less than 30 days, they will send you a brand new unit. Make sure you demand a new unit since you've had it less than 30 days. They will next day you a projector at no cost, and also no return shipping cost.

You will need your serial number, and date of purchase. It's pretty painless.

Dan

Yes. Have Epson exchange it for a new one if they will.

Wow, 6 months later and this is still an issue? WTF. I went thru 4 units trying to get a "good" one and all had convergence or uniformity issues (and one had a defective fan.) BTW, I wouldn't expect to get a new unit, all the ones I received were "remanufactured." The first replacement one I got must have already had several hundred hours on the bulb as it was significantly less bright than the original unit I received (I had them both at the same time so I could directly compare them.)

If you want to be happy, my recommendation is to forget about the 1080UB and get yourself a RS1 or RS1x. With the new RS10/RS20 models just announced, you can probably get one for just about the same cost as the Epson or less if you take a gently used one off the hands of someone looking to upgrade to the newer version. Perfect uniformity, adjustable convergence, native contrast, much brighter in best color mode, and no worries of dust blobs.....ever! Even though I paid a 30% premium for my RS1x over the 1080UB (Home, not Pro version) back in May when I decided to abandon Epson, it was totally worth it! Just my $.02.

For me, a fully controllable CMS is very important. I love being able to dial in the calibration to near perfection. The 1008UB allows this. I'm not sure a JVC could match this from my 1080 UB.
http://www.geocities.com/stereomandan/pics/newgamut.jpg


Which JVC's have full CMS control? I think I heard that some of the newer ones might.

Dan

steevo123
my unit (not UB though) has very much of the same. I almost got uniformity issue disappear when zoom is set to give the biggest picture possible.

Horizontal lens shift will affect the amount of color fringing (or chromatic aberration) in vertical lines. In my case, lens shift to left is best.

Up-down lens shift affects horizontal lines. My pj is best when lens is down. I have it shelf mounted. Ceiling mount it (pj upside down) and it`s not tolerable! Lens shift should make positioning easier, but in the end there´s only one best place for your pj, and it´s not necessarily the one you planned!

Dan - yes, the RS1/2 lack CMS. The newer models will have this. However, there are devices like the Lumagen processors which allow you to correct the color space. A friend and fellow AVSer has a Lumagen attached to his RS1 and I've seen it fully color corrected. While it may be more "accurate" I have to say I prefer the richer (but not over-saturated) colors on my stock RS1x. Even my friend mentioned there are some times when he prefers it with the Lumagen CMS disabled. The only problem is the JVC has a notoriously inaccurate green point and this will produce some really bizarre looking greens in some situations, but I've only been bothered by it once or twice, and certainly not enough to justify spending $1k or more on an external processor to correct it! I just turn the color down a few notches and I'm good with it.

Doug,

Sounds like a good idea. The RS2 and RS1 are awesome projectors. My favorite thing about them is the great black level without use of a dynamic iris.

With the 1080UB, the CMS is a dream for me. I love tweaking things, and it gives me ample opportunity to do that. On my 1080UB, the improvement with default settings versus calibrated is stunning. The RS1, RS2 might be better out of the box than the Epson though, and the difference might be less noticeable.

One thing to ask your friend is if he recorrected his primary and secondary brightnesses after moving them to the right locations in the color space. That will have a big impact if he didn't. Just a thought as to why the calibrated settings might not have the Wow factor he thought it should.

Dan

Wow, 6 months later and this is still an issue? WTF. I went thru 4 units trying to get a "good" one and all had convergence or uniformity issues (and one had a defective fan.) BTW, I wouldn't expect to get a new unit, all the ones I received were "remanufactured." The first replacement one I got must have already had several hundred hours on the bulb as it was significantly less bright than the original unit I received (I had them both at the same time so I could directly compare them.)

If you want to be happy, my recommendation is to forget about the 1080UB and get yourself a RS1 or RS1x. With the new RS10/RS20 models just announced, you can probably get one for just about the same cost as the Epson or less if you take a gently used one off the hands of someone looking to upgrade to the newer version. Perfect uniformity, adjustable convergence, native contrast, much brighter in best color mode, and no worries of dust blobs.....ever! Even though I paid a 30% premium for my RS1x over the 1080UB (Home, not Pro version) back in May when I decided to abandon Epson, it was totally worth it! Just my $.02.
adjustable convergence: is this possible with lcd or only lcos is able to do pixel shift?

I have checked over many Epson's recently...I had to fail only 1. That is a far cry from what it was a while back, but as with ANY 3 chip design, there will be some issues.

Without seeing yours it is hard to say whether it is within spec or not.

I'm not aware of any LCD units with adjustable convergence, but then again I'm certainly no expert. Its a nice feature on the RS1 that came in handy for correcting a mild red vertical error in my unit. With a single pixel of vertical shift I now have essentially perfect convergence over appx 90% of the screen, and only have about a 1/3 to 1/2 pixel error in the very bottom. But I'm using about 90% of the available vertical lens shift so my feeling is this kind of error is perfectly tolerable and its not something that's evident during normal viewing, even when looking for it from a normal distance.

My personal feeling is that anything beyond 1/2 pixel is unacceptable. If they can't consistently manufacture 3LCD units like the 1080UB within these tolerances, than its just not a viable product, IMO. I don't think one should confuse lack of features in lower priced units with lack of proper functionality.