Epson 5020UB Owners Thread... - Page 44 - AVS Forum
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post #1291 of 1298 Old 06-26-2014, 09:27 AM
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Quote:
Originally Posted by kriktsemaj99 View Post
When trying the panel alignment, make sure you only use whole pixel shifts of the entire panel (that should avoid introducing any extra artifacts). To get a whole pixel shift make sure you only move the corners, and move all 4 corners of a given panel by the same amount which is a multiple of 8 steps (8 steps equals 1 pixel IIRC).
This pixel shifting in 8 steps makes no difference in the real world. In fact in my tests it can make the image look worse. I have spent many many hours on this testing this out and comparing. Also how can you light up an 1/8th of a pixel? A pixel is either on or off.
If we are referring to a matrix block of pixels of 8x8 then fine, but that is not one pixel.
To me the problem looks more like an out of line lens system. I've seen it before with lenses that have been incorrectly columised.
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post #1292 of 1298 Old 06-26-2014, 09:56 AM
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His case might be an optical problem, but the general advice about panel alignment still holds. Moving 1/8 pixel (1 step) will cause resampling and you'll get double-pixel wide lines. The cure can be worse than the disease, so I would stick to whole pixel shifts (8 steps). But you have to make the same shift on all four corners otherwise you're still resampling, so don't judge the result until all four corners have been moved.

I've played with the alignment on my 5030 (same system as the 5020) and it's clear that doing a global shift of one colour by a whole pixel doesn't cause any extra artifacts.
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post #1293 of 1298 Old 06-27-2014, 09:29 AM
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Thanks for the suggestions regarding my possible alignment issue. After talking with a tech at Visual Apex as well as one at Epson, I'm just getting a replacement projector sent to me. Crossing my fingers that this one is better.
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post #1294 of 1298 Old 06-29-2014, 10:54 PM
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try this in the LCD alignment on the remote press the RGBCMY and turn the green right down, all 3 Hue Saturation & Brightness now on the alignment select color red first and then on the pattern color R/G now that the green is not so bright you can really see how much to move the red and do the blue with B/G don't forget to default the green back see if this helps
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post #1295 of 1298 Old 07-01-2014, 06:43 PM
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Quote:
Originally Posted by pkriengsiri View Post
Thanks for the suggestions regarding my possible alignment issue. After talking with a tech at Visual Apex as well as one at Epson, I'm just getting a replacement projector sent to me. Crossing my fingers that this one is better.

Got my replacement projector from Epson today and... WOW what a difference! New one is as sharp as a tack. Blue alignment was a little off out of the box, but that was easily fixed via tips others have provided in this thread.


One other thing I noticed with the defective unit was that there was a very faint dimming that would occur occasionally. The brightness seemed to dim ever so slightly (for a fraction of a second) and the color balance would go a little out of whack as well. No such problems that I can tell with the new one.


Thanks to everyone for their help and suggestions. Very happy 5020UBE owner here!
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post #1296 of 1298 Old 07-18-2014, 04:54 AM
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New 5020UB r , Convergence & Focus

Hey guys,
I think this may be my first post but I think it is important to help other news owners with set up and or help others in jumping in on a refurb unit or even the 5030

I had spent time centering & focusing my projector and still felt it was out of focus in some areas more then others.
So I spent some time aligning the LCDs via the control panel and was getting a better picture, but still felt it was not tack sharp and was seriously considering sening it back or trading it out.
The problem I was noticing during convergence was, the 3 corners looked fuzzy and not as sharp as the 4th.
In thinking about it I though well maybe the lens is just not perfect or LCDs are not on plane and this is something I may have to live with, but then thinking a little more I decided to adjust, ****, and or turn the unit just a little to try to bring those corners into focus. Well that was it!! It turns out just a hair of adjustment to the whole unit and that put the whole picture in focus and aligning the LCDs if needed is then an easy process too!

Now the picture looks great in all aspects and the buyers remorse gone.

I guess what it comes down to is the face of the screen and the face of the projector need to be on the same "plane" because the focal focus range is so precise. from there lens shift should not make a difference.

On another note, there is some fan noise but I don't find it unacceptable or bothersome. When watching a movie you are unlikely to notice. I have been sitting right next to it for testing and it's just fine. It can run warm though so in a small room with no A/C or venting it may warm up the room.
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post #1297 of 1298 Old Yesterday, 12:52 PM
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I watched Snowpiercer via AppleTV this weekend on the 5020 projected onto 120". Was damn impressed at how well it held up, I'd say 90% of the way there to Blu quality and guests viewing it wouldn't have known it was a stream unless told. First time I had ever used the ATV for a new film, thumbs up and of course the 5020 was the workhorse here, love it!

Buncha savages in this town....

Sam Posten
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post #1298 of 1298 Old Yesterday, 05:55 PM
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Just was checking out the 5020s 3D function via avatar 3D and I have to say wow. What a way to watch a movie.
I did not think I would care about the 3d function nor was looking forward to it. The 3d movies I have seen in the past in theaters were not that great, but after watching this level of 3D, I have to say it is really impressive and really adds so much to the experience and depth. So much so, it would be hard to watch the same movie in 2D. From the looks of this level of tech I would say 3D is not a fad but is here to stay and will become the norm years down the pipeline as the tech improves even more.
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