UNofficial Sony VPL-HS50/1 tweak thread - Page 18

Check out these readings for the 51A.




Super flat color temp and RGB track. I followed the advice of Gregg over in the display calibration forum, and tried a different techinque on the 51A which might alsao work on the 51.

It involves finding where RED begins to fall off. In the graph below, you can see how red starts to fall off at 85 IRE. By moving the K value for 85 IRE up to 100 IRE and recalibrating, the near perfect grayscale track was achieved. You lose some brightness and ON/OFF contrast, but the benefits of a near perfect grayscale track might be worth it. If anyone wants me to go into specifics of the calibration technique, I will be happy to elaborate.

Just wanted to say that my lamp blew last night, but that going on 18 months and I still love this projector. This is the longest I've ever owned a digital for without getting upgrade fever.

I apologize if I bring any topic up that has been previously discussed, as I have not kept up with the whole thread. Primarily, I just want to post my results.

I have put over 3000 hours on my HS51 (with the 720p fix) and have been using Avia and DVE to calibrate it for about 6 months. I am projecting with a diagonal of 92 on a Da-Lite high contrast cinema vision screen. The DVD player is a Pioneer Elite DV-59AVi running at 720p, connected with HDMI. I have found the settings below to be the best for me with the calibration tools I have, just the two DVDs, and a general knowledge of picture parameters.

Brightness
48 - with no ambient light
54 - At night with my typical lighting
62-81 - During the day with blinds open

Contrast - Max
Color - 51
Hue - 51
Sharpness - Min

Black level Adj* - Off
Gamma Correction* - Off
Color Temp - Middle
Iris - Auto
Lamp - High
RCP* - Off

*Did not experiment with.

During the process I was never able to crush the whites or get the greens perfect. And I have concerns with contrast at max, as I have always been told never max out contrast. Also, I don't know what it is but something about the yellows seems off and reds get compressed a little.

With out buying a signal generator and testing equipment, can I fix the problems with the green/yellows and reds? Maybe using RCP or the factory menu.

Any help or suggestion on how I can improve the picture quality would be greatly appreciated.

Thanks,
Matt

Hi folks, (this is my first posting in this forum)

I have got a Problem with my HS50 Factory Settings. I have tried to adjust the parameters without subscribe the values down.....

Has anyone of YOU written them down ?? i need help, my picture is ...

Does anyone know if there is a factory reset on the HS50 ?? how can i do it ..

i dont know what i have done in the Factory Menue but the suddenly got realy fine... (after days of blind stepping )--------

And THX in this Forum for the bigbig help

Hi Friends!

I just picked up this projector a couple days ago on an impulse because my lamp popped on my last projector.

The first thing i noticed was on dark scenes in movies the blacks are not uniform throughout the screen. It has a green tint on the lower left and upper right. I also noticed along the left side, from top to bottom, there is a blue push that come out a couple inches.

Could this be the properties of the LCDs?

My white field looks good from what i can tell by eye.

I am thinking about swapping it out for another one to see if its any different but i would rather just tweek it if thats all it needs. Or maybe I should break the bank and just get the VPL-VW50.

Maybe I need to let the lamp break-in a little? I'm at about 3-4 hours.

Im using Input-a but I will try the hdmi tonight to see if that has any effect.


Jeff


PS- sorry if this subject has already been touched.. I only read the first and last couple pages.

I've not noticed that bad of shading issues. It could probably be corrected, depending on how comfortable you are with tweaking it. However, if it's that noticable I'd probably just exchange it myself. It's highly unlikely it's the bulb or needs break-in or anything of that nature.

Mine has none of the issues and shading is very minimal too.
Exchange it and then decide on Pearl.

I just realized i don't have the hs50 but i have the HS60..DUH! I did say it was an impulse buy haha. It seems as though they have the same menus (user and factory).

I brought it back and exchanged it for a new one and it has the same issue with the color uniformity in blacks.

I didn't have much time last night to really get deep into it but I messed around with the gamma settings in the factory menu and it seems like that is the solution.
The thing I don't understand is under "shading" there is 11 settings. Lets say I tweak shade "1" to perfect uniformity then switch to shade "2", I will have to do it again? Then i would have to follow though tweaking all the "shades"? And not to forget that I will have to record all the changes I make. WOW that could take hours... and with my luck I would forget to hit "store to memory" haha

When changing the values in the gamma (R,G,B), what would be the better way to adjust the value? ie: If it is displaying a green push in an area, would I want to turn the green down or red and blue up or a little of both. What are my possible dangers or compromises in changing the preset gamma values.

Jeff

Don't mess with it until you have about 100 hrs or more on the lamp. Things will change rapidly early on. Write down all the factory default before you change any thing in the service menu.
If you have green black in "low temp" then you need to decrease green bias in color temp menu. Once every thing looks good then you will touch up your shading but not until you have calibrated gray scale.

Does any one have a link or know where I can find documention on the "cryptic" options in the factory menu. I know a lot of it but theres more I dont know.

I found the problem...

I connected the HTPC via HDMI and it looks great! I didn't have this problem with my last projector but it looks good now. Glad I didn't touch the shading thanks!!

Jeff

Edit - After watching a couple movies it lost the "wow" and watching a movie with subtitles with the iris set on auto was distracting to me. I swaped it out for a VPL-VW50 and "WOW" is back.

Just got a new sony ns90 player with hdmi.Hooked it to my 51 and it looks great! One problem, the projector wont let me change the aspect ratio. just stays in wide mode for anamorphic dvds.and not applicable comes up all 133 dvds stretched. no problem with y pb pr. Is a trip to the shop needed? thanx

You're probably using the player at 1280x720 resolution; set the player to 480i/480p and you should be able to use the various screen modes. I've not done this with my HS51A, but I do it all the time with my HS20/OPPO 971.

Had to turn progressive off in the player and droped res down works ok now thanx

Hi,

I'm not allowed to post images yet, so please refer to this page for illustrations:
haukvik[dot]com[slash]rgbtrack

I did some grayscale calibration with CalMan recently, and initially I got pretty bad greyscale tracking, with a serious red peak at IRE 40 and 50, and a smaller one at 80 and 90. I tried a few more runs, but wasn't able to eliminate the peaks. The peak was clearly visible by eye, when looking at a 5% grey ramp, a red cast was very visible in the middle of the ramp.

I figured this was a good time to try out the 'Image Director' software, so I connected my computer to the projector, and pulled the gamma curve for red down a bit to see if it had any effect.

Then I did a few more CalMan runs, and ended up with a vastly improved grayscale tracking.

So by manipulating the gamma curve in the projector, I obtained a much better RGB tracking, with no visible cast, but the resulting gamma curve is not exactly smooth...

Is this a good way to obtain good RGB tracking, or do the bumpy gamma curve have any bad effects on the picture?

-Torstein

Did you do it with DI diabled? I had a friend over that had color analyzer and gray scale turned out pretty nice. The only thing is a blue peak at 20 IRE with red goes opposite. Overall it is very nice but can be better. I only have 120 hrs on the lamp and machine. Out of box was very close I admit for D65 but D75 was more like 95000K.
I need to to hook my PC and use the image director. I will redo every thing at 500 hr mark again. Mine is a 51A and I need to buy my own color analyzer, I know.

I left it on Auto, and used window patterns on the GetGray calibration disc.


-Torstein

Find where your red gain peaks and then back off like 10 points.
Use that as a fixed point and do the rest based on that. Might help you to flatten the curve.

The red gain is just below peaking.

I have tried lowering it more, but that didn't help much, that was why I tried tweaking the gamma curve with Image Director.

I just wondered if the gamma curve tweaking will cause any other problems.

As long as gray scale works shouldn't be any problem.
Your bulb is running out of red spectrum is mainly the issue.

Hi everyone!

Its been a long time since no one posted in this thread!

I just bought my sony vpl-hs51 projector, but i find that i need to calibrated cause my xbox360 games look a little bit to dark and when watching hd movies they don't look as good as i thought.

As i don't have any calibrating tools, can someone give me what he thinks are the best settings for this projector? Mainly for Component imput and hdmi. I am not quite familiar with technical words, but as i have read, i have to get to the service mode...

I would really appreciate your help to get the best from this pj!!

Thanks guys!!

hi, i just bought a used sony vpl-hs50 and dum as i am i started started playing with the factory settings. well i didn't think about writing down the old settings, and now the image look really bad.
So i was wondering if somone could tell me the original settings?
thanks in advance

My bulb has gone, so I can't check..

But surely there is a Reset To Factory Defaults setting in one of the menus? I haven't used my projector for more than 18 months, so I don't remember in detail, but I would be shocked if it doesn't have this option somewhere.

Just find that option in the menus and run it - it's possible that there will be two settings, one globally and one per-input, so check all the menus.

hi, thanks for your reply..
there is indeed a option to reset but it is only for the standart user settings and nor for the factory menu...